Math question: What is the sum of all the prime numbers less than or equal to 2705, excluding 2 and 5?

The prime numbers less than or equal to 2705, excluding 2 and 5, are 3, 7, 11, 13, 17, 19, 23,... To find the sum of these primes, we first notice that they form an arithmetic sequence with a common difference of 10. Thus, we can find the number of terms using the formula: (last term - first term)/common difference + 1. Plugging in the values, we get (2705 - 3)/10 + 1 = 270/10 + 1 = 27 + 1 = 28. Now, we can sum the arithmetic series using the formula: sum = (number of terms/2) * (first term + last term). This gives us (28/2) * (3 + 2705) = 14 * 2708 = 37912. Therefore, the sum of all prime numbers less than or equal to 2705, excluding 2 and 5, is 37912.

Math question: What is the sum of the digits when 2705 is divided by 9 and multiplied by 4?

To find the sum of the digits, we can calculate (2+7+0+5) = 14. Now, dividing 2705 by 9 gives us 300 remainder 5. Multiplying this remainder 5 by 4 yields us 20. Therefore, the sum of the digits for 2705 when divided by 9 and multiplied by 4 is 20.

Math Question: What is the smallest positive integer you need to multiply by 2705 such that the sum of its digits is 21?

To find the answer, we can first calculate the sum of the digits in 2705, which is 2 + 7 + 0 + 5 = 14. Since we are looking for a product with a sum of digits as 21, we can calculate: 21 - 14 = 7 Therefore, to achieve a sum of 21, we need to multiply 2705 by 7. Thus, the answer is 18935.

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

2705 (number)

2705 is an odd 4-digits composite number following 2704 and preceding 2706. In scientific notation, it is written as 2.705 × 10^3. The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors. There are 2160 positive integers (up to 2705) that are relatively prime to 2705.

Interesting facts

2705 has 4 divisors, whose sum is 3252
The reverse of 2705 is 5072
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 14
Digital Root 5

Name

Name	two thousand seven hundred five

Notation

Scientific notation	2.705 × 10^3
Engineering notation	2.705 × 10^3

Prime Factorization of 2705

Prime Factorization 5 × 541

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	2705	Product of the distinct prime numbers

The prime factorization of 2705 is 5 × 541. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 5, 91, 25, 35, 641, 2607, 593, 27198, 75910, 977906, 284717, 9234858, 8210328, 55636786, 97830988, 992268498, 668715571, 7194145278, 2150940603

Basic calculations (n = 2705)

Multiplication

n×y

n×2	5410
n×3	8115
n×4	10820
n×5	13525

Division

n÷y

n÷2	1352.5
n÷3	901.66666666667
n÷3	676.25
n÷5	541

Exponentiation

n^y

n²	7317025
n³	19792552625
n⁴	53538854850625
n⁵	144822602370940625

Nth Root

^y√n

²√n	52.009614495783
³√n	13.933356735282
⁴√n	7.2117691654533
⁵√n	4.8577309115435

Divisors of 2705

1, 5, 541, 2705

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	-2704	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 2705 can be divided by 4 positive divisors. The sum of these divisors (counting 2705) is 1, the average is 0.25.

Base conversion 2705

Base	System	Value
2	Binary	101010010001
3	Ternary	10201012
4	Quaternary	222101
5	Quinary	41310
6	Senary	20305
8	Octal	5221
10	Decimal	2705
12	Duodecimal	1695
16	Hexadecimal	a91
20	Vigesimal	6f5
36	Base36	235

Cryptographic Hash Functions

md5	825f9cd5f0390bc77c1fed3c94885c87
sha1	45ba3e806f8749c9c8dd06e56d7382718b8145f8
sha256	66d714cbcd03fde392ae31bb5fb6ee2bf56f2ba5920e1e0502d4827839ca4d12
sha512	0d8a186eda4e085008aab84ace53dec2e69487c642dc38c1f8c0e403311331b2fa15ed2662b99b6898004bffe835f574e00d49eedb6039df39773eaada0363ff
ripemd-160	e731588107eb61d3468d4701ec31bbf98d8ab3e8

2705 as geometric shapes

Circle

Radius = n

Diameter	5410
Circumference	16996.016255921
Area	22987111.986133

Sphere

Radius = n

Volume	82906850563.319
Surface area	91948447.944531
Circumference	16996.016255921

Square

Length = n

Perimeter	10820
Area	7317025
Diagonal	3825.4476862192

Cube

Length = n

Surface area	43902150
Volume	19792552625
Space diagonal	4685.1974344738

Equilateral Triangle

Length = n

Perimeter	8115
Area	3168364.7650629
Altitude	2342.5987172369

Triangular Pyramid

Length = n

Surface area	3168364.7650629
Volume	2332574696.3549
Height	1275.1492287397