21031813 (number)

21031813 is an odd 8-digits composite number following 21031812 and preceding 21031814. In scientific notation, it is written as 2.1031813 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors. There are 18827720 positive integers (up to 21031813) that are relatively prime to 21031813.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand eight hundred thirteen

Notation

Scientific notation 2.1031813 × 10^7
Engineering notation 2.1031813 × 10^6

Prime Factorization of 21031813

Prime Factorization 11 × 107 × 107 × 167

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 196559
Product of the distinct prime numbers

The prime factorization of 21031813 is 11 × 107 × 107 × 167. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 27, 44, 228, 81, 1689, 5526, 91839, 30343, 423431, 145791, 9381555, 4605827, 90932527, 14109422, 273240998, 835273504, 1858155380, 9603444689

Basic calculations (n = 21031813)

Multiplication

n×y
n×2 42063626
n×3 63095439
n×4 84127252
n×5 105159065

Division

n÷y
n÷2 10515906.5
n÷3 7010604.3333333
n÷3 5257953.25
n÷5 4206362.6

Exponentiation

ny
n2 442337158066969
n3 9.3031523914159E+21
n4 1.9566216140676E+29
n5 4.1151299898829E+36

Nth Root

y√n
2√n 4586.0454642317
3√n 276.03166425906
4√n 67.720347490482
5√n 29.145757177416

Divisors of 21031813

1, 11, 107, 167, 1177, 1837, 11449, 17869, 125939, 196559, 1911983, 21031813

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031812
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031813 can be divided by 12 positive divisors. The sum of these divisors (counting 21031813) is 1, the average is 0.083333333333333.

Base conversion 21031813

Base System Value
2 Binary 1010000001110101110000101
3 Ternary 1110120112020001
4 Quaternary 1100032232011
5 Quinary 20341004223
6 Senary 2030441301
8 Octal 120165605
10 Decimal 21031813
12 Duodecimal 7063231
16 Hexadecimal 140eb85
20 Vigesimal 6b8jad
36 Base36 cis91

Cryptographic Hash Functions

md5 740bff35b6aad5db51c6ab4688be1547
sha1 a954ef647361ef830b25fe4090cb000ff2318aef
sha256 fec6821c81fbdffbde7184c47088ea5c8e3aafbfbca8fbf73f08307da5d5997f
sha512 108bff432a140b9b4637516f5cdb91ad33f32f64223b7189a3a8920bf497c3a142ffebcfdff6b1d62336608c418e3f621df68636d68e3d373a9352b3657f15e6
ripemd-160 d967ebf3ced99053081b98d9ba50e0d28889e9a8

21031813 as geometric shapes

Circle

Radius = n
Diameter 42063626
Circumference 132146778.42495
Area 1.389643166193E+15

Sphere

Radius = n
Volume 3.8968953610798E+22
Surface area 5.5585726647719E+15
Circumference 132146778.42495

Square

Length = n
Perimeter 84127252
Area 442337158066969
Diagonal 29743475.185895

Cube

Length = n
Surface area 2654022948401814
Volume 9.3031523914159E+21
Space diagonal 36428168.691288

Equilateral Triangle

Length = n
Perimeter 63095439
Area 1.915376079619E+14
Altitude 18214084.345644

Triangular Pyramid

Length = n
Surface area 1.915376079619E+14
Volume 1.0963870237303E+21
Height 9914491.7286316