Math question: What is the smallest three-digit prime number greater than 1900 and divisible by 3?

The prime factorization of 1941 is 3 x 647. To find the smallest three-digit prime number greater than 1900 divisible by 3, we increment 647 until we find a prime number greater than 1900. After checking 647, 650, 653, and so on, we find that 653 is the smallest three-digit prime greater than 1900 that is divisible by 3. Therefore, the answer is 653.

Math Question: What is the smallest prime factor of 1941?

To find the smallest prime factor of 1941, we can begin by checking divisibility with prime numbers in ascending order. Starting with 2, we observe that 1941 is not divisible by it as the last digit is odd. Moving to 3, we find that the sum of the digits of 1941 is 1 + 9 + 4 + 1 = 15, which is divisible by 3. Dividing 1941 by 3 gives us 647, which is also not divisible by 3. Continuing to 5, 7, and 11, we see that 1941 is not divisible by any of them. Finally, by checking divisibility with 13, we find that 1941 ÷ 13 = 149, which means that the smallest prime factor of 1941 is 13. In summary, the smallest prime factor of 1941 is 13.

Math Question: What is the sum of all odd numbers between 1941 and 2000 inclusive?

To find the sum of all odd numbers between 1941 and 2000, we need to identify the first and last terms of our sequence. The first odd number is 1941, and the last odd number is 1999 since it is the largest odd number below 2000. We can set up an arithmetic sequence with a common difference of 2, as every odd number is 2 units apart from the next. Using the formula for the sum of an arithmetic series, Sn = (n/2)(a + l), where Sn is the sum, n is the number of terms, a is the first term, and l is the last term, we have: n = (l - a)/d + 1 = (1999 - 1941)/2 + 1 = 29 + 1 = 30. Substituting these values into the sum formula, we find: Sn = (30/2)(1941 + 1999) = 15 * 3934 = 59010. Therefore, the sum of all odd numbers between 1941 and 2000 is 59010.

Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

1941 (number)

1941 is an odd 4-digits composite number following 1940 and preceding 1942. In scientific notation, it is written as 1.941 × 10^3. The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors. There are 1292 positive integers (up to 1941) that are relatively prime to 1941.

Interesting facts

1941 has 4 divisors, whose sum is 2592
The reverse of 1941 is 1491
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 15
Digital Root 6

Name

Name	one thousand nine hundred forty-one

Notation

Scientific notation	1.941 × 10^3
Engineering notation	1.941 × 10^3

Prime Factorization of 1941

Prime Factorization 3 × 647

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1941	Product of the distinct prime numbers

The prime factorization of 1941 is 3 × 647. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 9, 40, 42, 10, 556, 1434, 945, 37523, 48801, 865797, 356255, 2030424, 6362274, 59271661, 70185734, 333938162, 713018293, 5877125876, 5730074914

Basic calculations (n = 1941)

Multiplication

n×y

n×2	3882
n×3	5823
n×4	7764
n×5	9705

Division

n÷y

n÷2	970.5
n÷3	647
n÷3	485.25
n÷5	388.2

Exponentiation

n^y

n²	3767481
n³	7312680621
n⁴	14193913085361
n⁵	27550385298685701

Nth Root

^y√n

²√n	44.056781543821
³√n	12.474079621202
⁴√n	6.6375282706608
⁵√n	4.5457453911411

Divisors of 1941

1, 3, 647, 1941

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1940	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1941 can be divided by 4 positive divisors. The sum of these divisors (counting 1941) is 1, the average is 0.25.

Base conversion 1941

Base	System	Value
2	Binary	11110010101
3	Ternary	2122220
4	Quaternary	132111
5	Quinary	30231
6	Senary	12553
8	Octal	3625
10	Decimal	1941
12	Duodecimal	1159
16	Hexadecimal	795
20	Vigesimal	4h1
36	Base36	1hx

Cryptographic Hash Functions

md5	7af6266cc52234b5aa339b16695f7fc4
sha1	1f927f440f0d4981ebc6b80725f69a0fcd4bd15c
sha256	5933b0b35d5d3e9d1f53fbce9403c5672883fff37f429dc1da26881f47415672
sha512	0dc5b8ccda73cb34b0e18a2f40cdee5058ea5086515e3dfaf3bdd18491442815651a09b6e195c39cea3d010d04b82d29fdaa27f9e0144794b08003aeb63fe784
ripemd-160	27638989909a151515676f40a545fb9c3a7f0f38

1941 as geometric shapes

Circle

Radius = n

Diameter	3882
Circumference	12195.662681236
Area	11835890.632139

Sphere

Radius = n

Volume	30631284955.976
Surface area	47343562.528557
Circumference	12195.662681236

Square

Length = n

Perimeter	7764
Area	3767481
Diagonal	2744.9885245662

Cube

Length = n

Surface area	22604886
Volume	7312680621
Space diagonal	3361.9106174912

Equilateral Triangle

Length = n

Perimeter	5823
Area	1631367.1271376
Altitude	1680.9553087456

Triangular Pyramid

Length = n

Surface area	1631367.1271376
Volume	861807675.96009
Height	914.99617485539