21125865 (number)

21125865 is an odd 8-digits composite number following 21125864 and preceding 21125866. In scientific notation, it is written as 2.1125865 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 10992000 positive integers (up to 21125865) that are relatively prime to 21125865.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-five thousand eight hundred sixty-five

Notation

Scientific notation 2.1125865 × 10^7
Engineering notation 2.1125865 × 10^6

Prime Factorization of 21125865

Prime Factorization 3 × 5 × 41 × 34351

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21125865
Product of the distinct prime numbers

The prime factorization of 21125865 is 3 × 5 × 41 × 34351. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 34, 18, 972, 543, 2272, 3308, 92622, 10660, 39073, 328483, 3788115, 3553325, 38089507, 99400886, 217951534, 606828688, 1427498238, 1517018977

Basic calculations (n = 21125865)

Multiplication

n×y
n×2 42251730
n×3 63377595
n×4 84503460
n×5 105629325

Division

n÷y
n÷2 10562932.5
n÷3 7041955
n÷3 5281466.25
n÷5 4225173

Exponentiation

ny
n2 446302171998225
n3 9.4285194348413E+21
n4 1.9918562873033E+29
n5 4.2079687024971E+36

Nth Root

y√n
2√n 4596.288176344
3√n 276.44251372137
4√n 67.795930381875
5√n 29.171778010705

Divisors of 21125865

1, 3, 5, 15, 41, 123, 205, 615, 34351, 103053, 171755, 515265, 1408391, 4225173, 7041955, 21125865

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 -21125864
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 21125865 can be divided by 16 positive divisors. The sum of these divisors (counting 21125865) is 1, the average is 0.0625.

Base conversion 21125865

Base System Value
2 Binary 1010000100101101011101001
3 Ternary 1110202022020110
4 Quaternary 1100211223221
5 Quinary 20402011430
6 Senary 2032444533
8 Octal 120455351
10 Decimal 21125865
12 Duodecimal 70a9749
16 Hexadecimal 1425ae9
20 Vigesimal 6c0ed5
36 Base36 ckstl

Cryptographic Hash Functions

md5 9891b3e4891e9787c88850e676d61223
sha1 69953b5908c48536daae06b8f89b143f520b9746
sha256 9b1ab068385c41634fc88b22798d2ac78e1bf2d3fc681c17aa8e3fcf415fb7d7
sha512 33607b6e5d51ca617e1e4363e68ffe453ce55e4ebb527e0edee764f2723ec237ac92a2c0acfcec646374653bef2b5a530bcfb8dc19d1b474df8a35ef7c92e3a1
ripemd-160 4718ab0d6983d9bec754d133d4bd171574b38a88

21125865 as geometric shapes

Circle

Radius = n
Diameter 42251730
Circumference 132737724.56946
Area 1.4020996248308E+15

Sphere

Radius = n
Volume 3.9494089854301E+22
Surface area 5.6083984993232E+15
Circumference 132737724.56946

Square

Length = n
Perimeter 84503460
Area 446302171998225
Diagonal 29876484.799863

Cube

Length = n
Surface area 2677813031989350
Volume 9.4285194348413E+21
Space diagonal 36591071.533841

Equilateral Triangle

Length = n
Perimeter 63377595
Area 1.9325450935732E+14
Altitude 18295535.766921

Triangular Pyramid

Length = n
Surface area 1.9325450935732E+14
Volume 1.1111616714876E+21
Height 9958828.266621