21031256 (number)

21031256 is an even 8-digits composite number following 21031255 and preceding 21031257. In scientific notation, it is written as 2.1031256 × 10^7. The sum of its digits is 20. It has a total of 5 prime factors and 16 positive divisors. There are 10439424 positive integers (up to 21031256) that are relatively prime to 21031256.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand two hundred fifty-six

Notation

Scientific notation 2.1031256 × 10^7
Engineering notation 2.1031256 × 10^6

Prime Factorization of 21031256

Prime Factorization 2 × 2 × 2 × 139 × 18913

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5257814
Product of the distinct prime numbers

The prime factorization of 21031256 is 2 × 2 × 2 × 139 × 18913. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 4, 99, 90, 724, 559, 8196, 3792, 62498, 59892, 845496, 659133, 7788074, 4166761, 65290095, 63407058, 447686111, 516243103, 9335645589, 8904961390

Basic calculations (n = 21031256)

Multiplication

n×y
n×2 42062512
n×3 63093768
n×4 84125024
n×5 105156280

Division

n÷y
n÷2 10515628
n÷3 7010418.6666667
n÷3 5257814
n÷5 4206251.2

Exponentiation

ny
n2 442313728937536
n3 9.3024132655999E+21
n4 1.9564143480663E+29
n5 4.1145850996255E+36

Nth Root

y√n
2√n 4585.9847361281
3√n 276.02922745861
4√n 67.71989911487
5√n 29.145602798346

Divisors of 21031256

1, 2, 4, 8, 139, 278, 556, 1112, 18913, 37826, 75652, 151304, 2628907, 5257814, 10515628, 21031256

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031255
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031256 can be divided by 16 positive divisors. The sum of these divisors (counting 21031256) is 1, the average is 0.0625.

Base conversion 21031256

Base System Value
2 Binary 1010000001110100101011000
3 Ternary 1110120111110102
4 Quaternary 1100032211120
5 Quinary 20341000011
6 Senary 2030434532
8 Octal 120164530
10 Decimal 21031256
12 Duodecimal 7062a48
16 Hexadecimal 140e958
20 Vigesimal 6b8i2g
36 Base36 cirtk

Cryptographic Hash Functions

md5 f384192cf9922d27d6da5f792df665c4
sha1 6473957ceb404785e6c1f32c7b3879ae192d25ea
sha256 2bcf28dffaa8a29ba8096b0863e4562407d85c4d434b2ad230979890184bb553
sha512 1eb5269c0410ab755005bd2804c15d50242d2517ef3916a96dd3dc49d9aada7cb71d210d8a3bda4563b0090c278f51e94dce224296393585e8649474838d7406
ripemd-160 73da363cc72411bd2e2562e2e4571c0b312147a3

21031256 as geometric shapes

Circle

Radius = n
Diameter 42062512
Circumference 132143278.69073
Area 1.3895695614121E+15

Sphere

Radius = n
Volume 3.896585756782E+22
Surface area 5.5582782456483E+15
Circumference 132143278.69073

Square

Length = n
Perimeter 84125024
Area 442313728937536
Diagonal 29742687.468941

Cube

Length = n
Surface area 2653882373625216
Volume 9.3024132655999E+21
Space diagonal 36427203.938988

Equilateral Triangle

Length = n
Perimeter 63093768
Area 1.9152746285127E+14
Altitude 18213601.969494

Triangular Pyramid

Length = n
Surface area 1.9152746285127E+14
Volume 1.0962999169176E+21
Height 9914229.1563135