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

21105871 (number)

21105871 is an odd 8-digits composite number following 21105870 and preceding 21105872. In scientific notation, it is written as 2.1105871 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 20790792 positive integers (up to 21105871) that are relatively prime to 21105871.

Interesting facts

21105871 has 4 divisors, whose sum is 21420952
The reverse of 21105871 is 17850112
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twenty-one million one hundred five thousand eight hundred seventy-one

Notation

Scientific notation	2.1105871 × 10^7
Engineering notation	2.1105871 × 10^6

Prime Factorization of 21105871

Prime Factorization 67 × 315013

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21105871	Product of the distinct prime numbers

The prime factorization of 21105871 is 67 × 315013. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 5, 78, 8, 17, 221, 3506, 6873, 50952, 1695, 363963, 87633, 6426141, 4628183, 9989877, 84945835, 348882607, 123458349, 4410458696, 7875174881

Basic calculations (n = 21105871)

Multiplication

n×y

n×2	42211742
n×3	63317613
n×4	84423484
n×5	105529355

Division

n÷y

n÷2	10552935.5
n÷3	7035290.3333333
n÷3	5276467.75
n÷5	4221174.2

Exponentiation

n^y

n²	445457790668641
n³	9.4017746657973E+21
n⁴	1.9843264326739E+29
n⁵	4.1880937709905E+36

Nth Root

^y√n

²√n	4594.1126455497
³√n	276.35527569627
⁴√n	67.779883782356
⁵√n	29.166254152065

Divisors of 21105871

1, 67, 315013, 21105871

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21105870	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21105871 can be divided by 4 positive divisors. The sum of these divisors (counting 21105871) is 1, the average is 0.25.

Base conversion 21105871

Base	System	Value
2	Binary	1010000100000110011001111
3	Ternary	1110201021210221
4	Quaternary	1100200303033
5	Quinary	20400341441
6	Senary	2032212211
8	Octal	120406317
10	Decimal	21105871
12	Duodecimal	709a067
16	Hexadecimal	1420ccf
20	Vigesimal	6bi4db
36	Base36	ckde7

Cryptographic Hash Functions

md5	c30824934af993ef80e5bba75f7de46b
sha1	d398de301cd6d79be5981b76a25f87241066b66b
sha256	dc145ba7456d361235deae6566bd1ccda4aec8f6d8b213549618c61fc888ec33
sha512	a26bc1d348efa3c24f77f31832d334f1d28552357f7570c5104810a944e8d3525091cc843e55c34d2cf1832a9cee2e11c423ad8b5f8eb45e954136ff9ce7094c
ripemd-160	0ffe05d9b7d019b39dbb34a21a51bc7c20652c04

21105871 as geometric shapes

Circle

Radius = n

Diameter	42211742
Circumference	132612098.56243
Area	1.3994469226489E+15

Sphere

Radius = n

Volume	3.9382061627701E+22
Surface area	5.5977876905958E+15
Circumference	132612098.56243

Square

Length = n

Perimeter	84423484
Area	445457790668641
Diagonal	29848209.013897

Cube

Length = n

Surface area	2672746744011846
Volume	9.4017746657973E+21
Space diagonal	36556440.909995

Equilateral Triangle

Length = n

Perimeter	63317613
Area	1.9288888151637E+14
Altitude	18278220.454997

Triangular Pyramid

Length = n

Surface area	1.9288888151637E+14
Volume	1.1080097702289E+21
Height	9949403.0046323