21131388 (number)

21131388 is an even 8-digits composite number following 21131387 and preceding 21131389. In scientific notation, it is written as 2.1131388 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 96 positive divisors. There are 6557760 positive integers (up to 21131388) that are relatively prime to 21131388.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand three hundred eighty-eight

Notation

Scientific notation 2.1131388 × 10^7
Engineering notation 2.1131388 × 10^6

Prime Factorization of 21131388

Prime Factorization 2 × 2 × 3 × 9 × 23 × 181 × 47

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10565694
Product of the distinct prime numbers

The prime factorization of 21131388 is 2 × 2 × 3 × 9 × 23 × 181 × 47. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 3, 39, 85, 581, 492, 3410, 5567, 85863, 94385, 708459, 977420, 9126120, 6960204, 34753635, 76275501, 624823816, 853928154, 9008406512, 1863776540

Basic calculations (n = 21131388)

Multiplication

n×y
n×2 42262776
n×3 63394164
n×4 84525552
n×5 105656940

Division

n÷y
n÷2 10565694
n÷3 7043796
n÷3 5282847
n÷5 4226277.6

Exponentiation

ny
n2 446535558806544
n3 9.4359161489379E+21
n4 1.9939400527867E+29
n5 4.2134720904177E+36

Nth Root

y√n
2√n 4596.8889479734
3√n 276.46660202847
4√n 67.800360972294
5√n 29.173303144792

Divisors of 21131388

1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 47, 54, 69, 92, 94, 108, 138, 141, 181, 188, 207, 276, 282, 362, 414, 423, 543, 564, 621, 724, 828, 846, 1081, 1086, 1242, 1269, 1629, 1692, 2162, 2172, 2484, 2538, 3243, 3258, 4163, 4324, 4887, 5076, 6486, 6516, 8326, 8507, 9729, 9774, 12489, 12972, 16652, 17014, 19458, 19548, 24978, 25521, 29187, 34028, 37467, 38916, 49956, 51042, 58374, 74934, 76563, 102084, 112401, 116748, 149868, 153126, 195661, 224802, 229689, 306252, 391322, 449604, 459378, 586983, 782644, 918756, 1173966, 1760949, 2347932, 3521898, 5282847, 7043796, 10565694, 21131388

96 divisors

τ Total Divisors 96
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.010416666666667
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 96
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131388 can be divided by 96 positive divisors. The sum of these divisors (counting 21131388) is 1, the average is 0.010416666666667.

Base conversion 21131388

Base System Value
2 Binary 1010000100111000001111100
3 Ternary 1110202120211000
4 Quaternary 1100213001330
5 Quinary 20402201023
6 Senary 2032530300
8 Octal 120470174
10 Decimal 21131388
12 Duodecimal 70b0990
16 Hexadecimal 142707c
20 Vigesimal 6c1898
36 Base36 ckx30

Cryptographic Hash Functions

md5 a1acfd5cd8833344f7abb6f7dd0e8c40
sha1 7da0462c39034a0a403ec5e6a5ebfebea554f34f
sha256 f3acde84056504d606082df1b43ee221d40e651e5999f619cbcd935f29f10339
sha512 b7cb022982e19a989bc6e9d5cbdb5147850a8f81759f9a6b41a695de51353ab1de80c15f04e93d4ca3e060d76aa6ce1f777bb298a7c8c33722eb6d49e48ad595
ripemd-160 b5fe45df5fe0ac1c8da67160c3d97a82942976d1

21131388 as geometric shapes

Circle

Radius = n
Diameter 42262776
Circumference 132772426.60191
Area 1.4028328311133E+15

Sphere

Radius = n
Volume 3.9525073137857E+22
Surface area 5.611331324453E+15
Circumference 132772426.60191

Square

Length = n
Perimeter 84525552
Area 446535558806544
Diagonal 29884295.501368

Cube

Length = n
Surface area 2679213352839264
Volume 9.4359161489379E+21
Space diagonal 36600637.650451

Equilateral Triangle

Length = n
Perimeter 63394164
Area 1.9335556880977E+14
Altitude 18300318.825226

Triangular Pyramid

Length = n
Surface area 1.9335556880977E+14
Volume 1.1120333826036E+21
Height 9961431.8337894