Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21072561 (number)

21072561 is an odd 8-digits composite number following 21072560 and preceding 21072562. In scientific notation, it is written as 2.1072561 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 13963920 positive integers (up to 21072561) that are relatively prime to 21072561.

Interesting facts

21072561 has 8 divisors, whose sum is 28265664
The reverse of 21072561 is 16527012
Previous prime number is 167

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

Name	twenty-one million seventy-two thousand five hundred sixty-one

Notation

Scientific notation	2.1072561 × 10^7
Engineering notation	2.1072561 × 10^6

Prime Factorization of 21072561

Prime Factorization 3 × 167 × 42061

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21072561	Product of the distinct prime numbers

The prime factorization of 21072561 is 3 × 167 × 42061. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 3, 1, 21, 837, 408, 6423, 6403, 80468, 96636, 556428, 769528, 5073809, 5454705, 72790640, 72604394, 95075731, 145797791, 41197469, 9586786567

Basic calculations (n = 21072561)

Multiplication

n×y

n×2	42145122
n×3	63217683
n×4	84290244
n×5	105362805

Division

n÷y

n÷2	10536280.5
n÷3	7024187
n÷3	5268140.25
n÷5	4214512.2

Exponentiation

n^y

n²	444052827098721
n³	9.3573302862603E+21
n⁴	1.9718291325437E+29
n⁵	4.1551489677103E+36

Nth Root

^y√n

²√n	4590.4859219913
³√n	276.2098147289
⁴√n	67.753124813482
⁵√n	29.157042100817

Divisors of 21072561

1, 3, 167, 501, 42061, 126183, 7024187, 21072561

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	-21072560	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 21072561 can be divided by 8 positive divisors. The sum of these divisors (counting 21072561) is 1, the average is 0.125.

Base conversion 21072561

Base	System	Value
2	Binary	1010000011000101010110001
3	Ternary	1110122121010020
4	Quaternary	1100120222301
5	Quinary	20343310221
6	Senary	2031354053
8	Octal	120305261
10	Decimal	21072561
12	Duodecimal	7082929
16	Hexadecimal	1418ab1
20	Vigesimal	6be181
36	Base36	cjnox

Cryptographic Hash Functions

md5	55e58ed6f9afb86f73c7531b870d755c
sha1	97e019541b6a58bec1f27c0316885a00868efbb1
sha256	2a46644ccbe672403e66a6018fec1c956e27455a658b1af269add80d21c928dd
sha512	2a6f8fbbfd4c48d7660be0c5d3c6bd4ddee873eb053b9d70459f7fbeb97f64bf03acc74878eedcb3474b5c074a375f79ee64e9d30dc851b6ad48ded30fc80d13
ripemd-160	00d1e35013e263553fe7612290caf6dfc65734b9

21072561 as geometric shapes

Circle

Radius = n

Diameter	42145122
Circumference	132402805.65985
Area	1.3950330994191E+15

Sphere

Radius = n

Volume	3.9195893446038E+22
Surface area	5.5801323976765E+15
Circumference	132402805.65985

Square

Length = n

Perimeter	84290244
Area	444052827098721
Diagonal	29801101.560134

Cube

Length = n

Surface area	2664316962592326
Volume	9.3573302862603E+21
Space diagonal	36498746.297594

Equilateral Triangle

Length = n

Perimeter	63217683
Area	1.922805144449E+14
Altitude	18249373.148797

Triangular Pyramid

Length = n

Surface area	1.922805144449E+14
Volume	1.1027719498695E+21
Height	9933700.5200448