Question: What is the smallest prime factor of the number obtained by multiplying 1721 by 4 and then subtracting 12?

To find the number, we first multiply 1721 by 4, which gives us 6884. Then, we subtract 12 from 6884, resulting in 6872. Now, to find the smallest prime factor of 6872, we can use prime factorization. The prime factorization of 6872 is 2^3 * 859. Therefore, the smallest prime factor of 6872 is 2.

Math question: What is the sum of the digits in the number 1721?

To find the sum of the digits in the number 1721, we need to add its individual digits. Taking each digit separately, we have 1+7+2+1 = 11. Therefore, the sum of the digits in the number 1721 is 11.

Math question: Find the positive integer that, when squared and divided by 17, gives a remainder of 8 but a remainder of 1 when divided by 13.

Let's search for a number of the form 17m + 8 and 13n + 1. Solving the system of congruences leads us to m = 9k + 6 and n = 17k + 11. Substituting those values into the expressions gives (17(9k + 6) + 8)^2 = (13(17k + 11) + 1), which simplifies to 1721k + 1158 = 13(221k + 143). Therefore, 1721k + 1158 = 2873k + 1861. By isolating k, we find k = 26. Finally, substituting k back, we get the positive integer as 1721(26) + 1158 = 44874. Hence, the required number is 44874.

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

1721 (number)

1721 is an odd 4-digits prime number following 1720 and preceding 1722. In scientific notation, it is written as 1.721 × 10^3. The sum of its digits is 11. It has a total of 1 prime factors and 2 positive divisors. There are 1720 positive integers (up to 1721) that are relatively prime to 1721.

Interesting facts

1721 has 2 divisors, whose sum is 1722
The reverse of 1721 is 1271
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 4
Sum of Digits 11
Digital Root 2

Name

Name	one thousand seven hundred twenty-one

Notation

Scientific notation	1.721 × 10^3
Engineering notation	1.721 × 10^3

Prime Factorization of 1721

Prime Factorization 1721

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	1721	Product of the distinct prime numbers

The prime factorization of 1721 is 1721. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 8, 30, 48, 119, 265, 4082, 1441, 92787, 37890, 428392, 526294, 8815975, 4778278, 38258026, 15660000, 428097577, 231303088, 1392179580, 3879073622

Basic calculations (n = 1721)

Multiplication

n×y

n×2	3442
n×3	5163
n×4	6884
n×5	8605

Division

n÷y

n÷2	860.5
n÷3	573.66666666667
n÷3	430.25
n÷5	344.2

Exponentiation

n^y

n²	2961841
n³	5097328361
n⁴	8772502109281
n⁵	15097476130072601

Nth Root

^y√n

²√n	41.484937025383
³√n	11.983774366921
⁴√n	6.4408801436902
⁵√n	4.4376819609365

Divisors of 1721

1, 1721

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	1722	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	861	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	41.496987842493	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9988385598142	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1721 can be divided by 2 positive divisors. The sum of these divisors (counting 1721) is 1722, the average is 861.

Base conversion 1721

Base	System	Value
2	Binary	11010111001
3	Ternary	2100202
4	Quaternary	122321
5	Quinary	23341
6	Senary	11545
8	Octal	3271
10	Decimal	1721
12	Duodecimal	bb5
16	Hexadecimal	6b9
20	Vigesimal	461
36	Base36	1bt

Cryptographic Hash Functions

md5	28dc6b0e1b33769b4b94685e4f4d1e5c
sha1	c49be16104f3ad7540f1766a626c4c0086c2d796
sha256	f6c9da6121853fcc02a24a3bc2d82fba916fe4e73622149627b97605d1dca2ec
sha512	b78ff4cdf488fa15d2bea7a8fa7a1d973a6b343367b8487b2b54d1524928af08bb8791c735cf5cbf20e984bc6d4dae7014efcf66117f1160bfb6d6fae706fde7
ripemd-160	e46a9d88f0f507dae394d8e1129e76e54857e480

1721 as geometric shapes

Circle

Radius = n

Diameter	3442
Circumference	10813.361913656
Area	9304897.926701

Sphere

Radius = n

Volume	21351639109.137
Surface area	37219591.706804
Circumference	10813.361913656

Square

Length = n

Perimeter	6884
Area	2961841
Diagonal	2433.8615408441

Cube

Length = n

Surface area	17771046
Volume	5097328361
Space diagonal	2980.859439826

Equilateral Triangle

Length = n

Perimeter	5163
Area	1282514.7739852
Altitude	1490.429719913

Triangular Pyramid

Length = n

Surface area	1282514.7739852
Volume	600725908.33294
Height	811.28718028137