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

21281572 (number)

21281572 is an even 8-digits composite number following 21281571 and preceding 21281573. In scientific notation, it is written as 2.1281572 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors. There are 9822240 positive integers (up to 21281572) that are relatively prime to 21281572.

Interesting facts

21281572 has 12 divisors, whose sum is 40107676
The reverse of 21281572 is 27518212
Previous prime number is 13

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	2.1281572 × 10^7
Engineering notation	2.1281572 × 10^6

Prime Factorization of 21281572

Prime Factorization 2 × 2 × 13 × 409261

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	10640786	Product of the distinct prime numbers

The prime factorization of 21281572 is 2 × 2 × 13 × 409261. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 55, 14, 57, 884, 9088, 5824, 26701, 28259, 111391, 101758, 6785573, 2141961, 83434779, 43640190, 691398361, 418882990, 7482603780, 8419042179

Basic calculations (n = 21281572)

Multiplication

n×y

n×2	42563144
n×3	63844716
n×4	85126288
n×5	106407860

Division

n÷y

n÷2	10640786
n÷3	7093857.3333333
n÷3	5320393
n÷5	4256314.4

Exponentiation

n^y

n²	452905306791184
n³	9.6385368956587E+21
n⁴	2.0512321691962E+29
n⁵	4.3653445097464E+36

Nth Root

^y√n

²√n	4613.1954218307
³√n	277.12001993117
⁴√n	67.920508109339
⁵√n	29.214653581439

Divisors of 21281572

1, 2, 4, 13, 26, 52, 409261, 818522, 1637044, 5320393, 10640786, 21281572

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	-21281571	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 21281572 can be divided by 12 positive divisors. The sum of these divisors (counting 21281572) is 1, the average is 0.083333333333333.

Base conversion 21281572

Base	System	Value
2	Binary	1010001001011101100100100
3	Ternary	1111001012211101
4	Quaternary	1101023230210
5	Quinary	20422002242
6	Senary	2040045444
8	Octal	121135444
10	Decimal	21281572
12	Duodecimal	7163884
16	Hexadecimal	144bb24
20	Vigesimal	6d03ic
36	Base36	co4ys

Cryptographic Hash Functions

md5	a6efe9fdc3716e49c1fc8ba24bb3b733
sha1	c5cd54b48c09d69a603efc949545c2a9fc53d026
sha256	d4941de88a007704185d13208a9403bca9593f341be112aae11332b1615e4703
sha512	8346726a6b7378f3447ef9e32ecc937176c58ef913d9061577f5a145a167daf45e9374e3d4f7c8d10a0f815ed1b9dd73de18eb59e92af42922a26de527b73a6e
ripemd-160	2049a95f6977096e3e3976017e3bb81e0aa0faeb

21281572 as geometric shapes

Circle

Radius = n

Diameter	42563144
Circumference	133716060.50408
Area	1.422843984587E+15

Sphere

Radius = n

Volume	4.0373808937007E+22
Surface area	5.6913759383481E+15
Circumference	133716060.50408

Square

Length = n

Perimeter	85126288
Area	452905306791184
Diagonal	30096687.75102

Cube

Length = n

Surface area	2717431840747104
Volume	9.6385368956587E+21
Space diagonal	36860763.968935

Equilateral Triangle

Length = n

Perimeter	63844716
Area	1.9611375059498E+14
Altitude	18430381.984468

Triangular Pyramid

Length = n

Surface area	1.9611375059498E+14
Volume	1.1359124666062E+21
Height	10032229.25034