21756021 (number)

21756021 is an odd 8-digits composite number following 21756020 and preceding 21756022. In scientific notation, it is written as 2.1756021 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 12432000 positive integers (up to 21756021) that are relatively prime to 21756021.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred fifty-six thousand twenty-one

Notation

Scientific notation 2.1756021 × 10^7
Engineering notation 2.1756021 × 10^6

Prime Factorization of 21756021

Prime Factorization 3 × 7 × 1036001

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21756021
Product of the distinct prime numbers

The prime factorization of 21756021 is 3 × 7 × 1036001. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21756021)

Multiplication

n×y
n×2 43512042
n×3 65268063
n×4 87024084
n×5 108780105

Division

n÷y
n÷2 10878010.5
n÷3 7252007
n÷3 5439005.25
n÷5 4351204.2

Exponentiation

ny
n2 473324449752441
n3 1.0297656668628E+22
n4 2.2403603473345E+29
n5 4.8741326764177E+36

Nth Root

y√n
2√n 4664.3350008335
3√n 279.16426395298
4√n 68.295936927708
5√n 29.343768913419

Divisors of 21756021

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21756020
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21756021 can be divided by 8 positive divisors. The sum of these divisors (counting 21756021) is 1, the average is 0.125.

Base conversion 21756021

Base System Value
2 Binary 1010010111111100001110101
3 Ternary 1111221022122120
4 Quaternary 1102333201311
5 Quinary 21032143041
6 Senary 2054150153
8 Octal 122774165
10 Decimal 21756021
12 Duodecimal 7352359
16 Hexadecimal 14bf875
20 Vigesimal 6fja11
36 Base36 cyb1x

Cryptographic Hash Functions

md5 fe2e9fd187bdc8ebbdfcab3795d38e10
sha1 3a595805a0cff3aaa904ad303021a425119280a9
sha256 9a47d08a7b4fb63e6a53d4c85a92517c42d02bbdf6c15f4cc7738771ee3e9684
sha512 a21e1f1751559ea55ec89a63795f143f5392928ea93e434abd71bb45a8f1e1e1fd67892b6fded616018a8bf6a8b108b97084286a94e79c7d434accb07c0d1932
ripemd-160 bc5dabcd603a0179fbd9abebe8237607afeec1f1

21756021 as geometric shapes

Circle

Radius = n
Diameter 43512042
Circumference 136697111.48989
Area 1.4869926141067E+15

Sphere

Radius = n
Volume 4.31347233858E+22
Surface area 5.9479704564268E+15
Circumference 136697111.48989

Square

Length = n
Perimeter 87024084
Area 473324449752441
Diagonal 30767659.961474

Cube

Length = n
Surface area 2839946698514646
Volume 1.0297656668628E+22
Space diagonal 37682533.742535

Equilateral Triangle

Length = n
Perimeter 65268063
Area 2.0495549885895E+14
Altitude 18841266.871268

Triangular Pyramid

Length = n
Surface area 2.0495549885895E+14
Volume 1.2135904767862E+21
Height 10255886.653825