21557790 (number)

21557790 is an even 8-digits composite number following 21557789 and preceding 21557791. In scientific notation, it is written as 2.1557790 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 5748720 positive integers (up to 21557790) that are relatively prime to 21557790.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred fifty-seven thousand seven hundred ninety

Notation

Scientific notation 2.1557790 × 10^7
Engineering notation 2.1557790 × 10^6

Prime Factorization of 21557790

Prime Factorization 2 × 5 × 3 × 3 × 239531

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7185930
Product of the distinct prime numbers

The prime factorization of 21557790 is 2 × 5 × 3 × 3 × 239531. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 7, 85, 63, 732, 278, 4920, 5111, 17217, 21049, 335022, 354931, 6341479, 9613874, 95567752, 88438029, 909049197, 447773185, 5189014944, 6852962774

Basic calculations (n = 21557790)

Multiplication

n×y
n×2 43115580
n×3 64673370
n×4 86231160
n×5 107788950

Division

n÷y
n÷2 10778895
n÷3 7185930
n÷3 5389447.5
n÷5 4311558

Exponentiation

ny
n2 464738309684100
n3 1.0018730885125E+22
n4 2.1598169648803E+29
n5 4.6560880567328E+36

Nth Root

y√n
2√n 4643.0367218018
3√n 278.31380295708
4√n 68.139832123376
5√n 29.290099527089

Divisors of 21557790

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239531, 479062, 718593, 1197655, 1437186, 2155779, 2395310, 3592965, 4311558, 7185930, 10778895, 21557790

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21557789
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21557790 can be divided by 24 positive divisors. The sum of these divisors (counting 21557790) is 1, the average is 0.041666666666667.

Base conversion 21557790

Base System Value
2 Binary 1010010001111001000011110
3 Ternary 1111120020201200
4 Quaternary 1102033020132
5 Quinary 21004322130
6 Senary 2050020330
8 Octal 122171036
10 Decimal 21557790
12 Duodecimal 72776a6
16 Hexadecimal 148f21e
20 Vigesimal 6eee9a
36 Base36 cu23i

Cryptographic Hash Functions

md5 688525e646beec14778cb70f2865b2b1
sha1 f6daa92aec2010b22a114ba65fb63e161cde49ce
sha256 b0f9c09b0b36e8bc79643ba25fb20da721f89c832262ac4791af119824d6d5cd
sha512 4e73a37d33c655e01a92cad4d6959547e41d76161dc72b2a1738643f57c6759e706b458fc2f0502c9b674cde43df8db2a0847fc6e20112000b0a18d4ec6b8eed
ripemd-160 76f5ef76a4bc6029fec5875c725cc3950c9741cf

21557790 as geometric shapes

Circle

Radius = n
Diameter 43115580
Circumference 135451589.38326
Area 1.4600184595453E+15

Sphere

Radius = n
Volume 4.1966361796002E+22
Surface area 5.8400738381812E+15
Circumference 135451589.38326

Square

Length = n
Perimeter 86231160
Area 464738309684100
Diagonal 30487318.992791

Cube

Length = n
Surface area 2788429858104600
Volume 1.0018730885125E+22
Space diagonal 37339187.5789

Equilateral Triangle

Length = n
Perimeter 64673370
Area 2.0123759114914E+14
Altitude 18669593.78945

Triangular Pyramid

Length = n
Surface area 2.0123759114914E+14
Volume 1.1807187579591E+21
Height 10162439.664264