21000872 (number)

21000872 is an even 8-digits composite number following 21000871 and preceding 21000873. In scientific notation, it is written as 2.1000872 × 10^7. The sum of its digits is 20. It has a total of 6 prime factors and 32 positive divisors. There are 10046400 positive integers (up to 21000872) that are relatively prime to 21000872.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred seventy-two

Notation

Scientific notation 2.1000872 × 10^7
Engineering notation 2.1000872 × 10^6

Prime Factorization of 21000872

Prime Factorization 2 × 2 × 2 × 29 × 131 × 691

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5250218
Product of the distinct prime numbers

The prime factorization of 21000872 is 2 × 2 × 2 × 29 × 131 × 691. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 7, 42, 85, 128, 431, 3102, 4911, 99090, 23346, 635260, 107776, 4638126, 1965889, 56685688, 74009189, 409784430, 170707235, 7502944818, 2928776633

Basic calculations (n = 21000872)

Multiplication

n×y
n×2 42001744
n×3 63002616
n×4 84003488
n×5 105004360

Division

n÷y
n÷2 10500436
n÷3 7000290.6666667
n÷3 5250218
n÷5 4200174.4

Exponentiation

ny
n2 441036624760384
n3 9.2621537039049E+21
n4 1.9451330438003E+29
n5 4.0849490075821E+36

Nth Root

y√n
2√n 4582.6708369683
3√n 275.89623628666
4√n 67.695427001891
5√n 29.137176557047

Divisors of 21000872

1, 2, 4, 8, 29, 58, 116, 131, 232, 262, 524, 691, 1048, 1382, 2764, 3799, 5528, 7598, 15196, 20039, 30392, 40078, 80156, 90521, 160312, 181042, 362084, 724168, 2625109, 5250218, 10500436, 21000872

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000872 can be divided by 32 positive divisors. The sum of these divisors (counting 21000872) is 1, the average is 0.03125.

Base conversion 21000872

Base System Value
2 Binary 1010000000111001010101000
3 Ternary 1110111221210002
4 Quaternary 1100013022220
5 Quinary 20334011442
6 Senary 2030042132
8 Octal 120071250
10 Decimal 21000872
12 Duodecimal 7049348
16 Hexadecimal 14072a8
20 Vigesimal 6b523c
36 Base36 ci4dk

Cryptographic Hash Functions

md5 ef82595c32d3e3f206241433d5ac12a0
sha1 46d4f75d5925ccbb68dfa53c34cfe1c782571c8e
sha256 5c3446b02d612b148da3b20f25532921f25474cbb6f743e48dd0684a9727187c
sha512 553f6c93f9ca52ea7ef8b5fc4674b9b47793b065c400ec818aaa4fcec088a0145d63cffa1d53b254bfd243f39e8472ad83294334adbe2a21cad2fdc2291e0494
ripemd-160 374ed89efbc9bac6adde90b11141e3ab7ac7a504

21000872 as geometric shapes

Circle

Radius = n
Diameter 42001744
Circumference 131952370.38836
Area 1.3855574203113E+15

Sphere

Radius = n
Volume 3.8797218710143E+22
Surface area 5.542229681245E+15
Circumference 131952370.38836

Square

Length = n
Perimeter 84003488
Area 441036624760384
Diagonal 29699718.004061

Cube

Length = n
Surface area 2646219748562304
Volume 9.2621537039049E+21
Space diagonal 36374577.307251

Equilateral Triangle

Length = n
Perimeter 63002616
Area 1.9097446052092E+14
Altitude 18187288.653625

Triangular Pyramid

Length = n
Surface area 1.9097446052092E+14
Volume 1.0915552820705E+21
Height 9899906.0013538