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

21018857 (number)

21018857 is an odd 8-digits prime number following 21018856 and preceding 21018858. In scientific notation, it is written as 2.1018857 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 21018856 positive integers (up to 21018857) that are relatively prime to 21018857.

Interesting facts

21018857 has 2 divisors, whose sum is 21018858
The reverse of 21018857 is 75881012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million eighteen thousand eight hundred fifty-seven

Notation

Scientific notation	2.1018857 × 10^7
Engineering notation	2.1018857 × 10^6

Prime Factorization of 21018857

Prime Factorization 21018857

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21018857	Product of the distinct prime numbers

The prime factorization of 21018857 is 21018857. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 5, 84, 30, 315, 521, 4950, 469, 91359, 55244, 591915, 363503, 4090670, 426289, 72546848, 36406392, 624965350, 165127021, 6443477235, 9978073296

Basic calculations (n = 21018857)

Multiplication

n×y

n×2	42037714
n×3	63056571
n×4	84075428
n×5	105094285

Division

n÷y

n÷2	10509428.5
n÷3	7006285.6666667
n÷3	5254714.25
n÷5	4203771.4

Exponentiation

n^y

n²	441792349586449
n³	9.2859702196516E+21
n⁴	1.9518048015312E+29
n⁵	4.1024706015297E+36

Nth Root

^y√n

²√n	4584.6327006643
³√n	275.97497235074
⁴√n	67.70991582231
⁵√n	29.142165423239

Divisors of 21018857

1, 21018857

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21018858	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10509429	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4584.6328097242	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999048474	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21018857 can be divided by 2 positive divisors. The sum of these divisors (counting 21018857) is 21018858, the average is 10509429.

Base conversion 21018857

Base	System	Value
2	Binary	1010000001011100011101001
3	Ternary	1110112212110012
4	Quaternary	1100023203221
5	Quinary	20340100412
6	Senary	2030301305
8	Octal	120134351
10	Decimal	21018857
12	Duodecimal	7057835
16	Hexadecimal	140b8e9
20	Vigesimal	6b772h
36	Base36	cii95

Cryptographic Hash Functions

md5	97e68588434dcc1e0de640a3a91ece83
sha1	c2874ab838ce21ae4524fc77d1ffaa879f4ddf9e
sha256	b3e414bed3b1d2f9db7dabd17a4ea4ba0c4d54ab02da10e05d11d6da0c7c62bc
sha512	74643791060561c760bc43cee46edc7d286e4f2aebd24f10a2be9e316f2935717d27e66d5c88bcb7dccf9cf2c25c87dd1ddb658a58e0ffbaeeb30e168a199133
ripemd-160	7b808520716b0cff08484742a42b18833fceab8f

21018857 as geometric shapes

Circle

Radius = n

Diameter	42037714
Circumference	132065373.47611
Area	1.387931599873E+15

Sphere

Radius = n

Volume	3.8896981098015E+22
Surface area	5.5517263994918E+15
Circumference	132065373.47611

Square

Length = n

Perimeter	84075428
Area	441792349586449
Diagonal	29725152.634981

Cube

Length = n

Surface area	2650754097518694
Volume	9.2859702196516E+21
Space diagonal	36405728.241025

Equilateral Triangle

Length = n

Perimeter	63056571
Area	1.9130169896974E+14
Altitude	18202864.120512

Triangular Pyramid

Length = n

Surface area	1.9130169896974E+14
Volume	1.0943620853687E+21
Height	9908384.2116602