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

21243791 (number)

21243791 is an odd 8-digits composite number following 21243790 and preceding 21243792. In scientific notation, it is written as 2.1243791 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 21223752 positive integers (up to 21243791) that are relatively prime to 21243791.

Interesting facts

21243791 has 4 divisors, whose sum is 21263832
The reverse of 21243791 is 19734212
Previous prime number is 18917

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty-one million two hundred forty-three thousand seven hundred ninety-one

Notation

Scientific notation	2.1243791 × 10^7
Engineering notation	2.1243791 × 10^6

Prime Factorization of 21243791

Prime Factorization 18917 × 1123

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21243791	Product of the distinct prime numbers

The prime factorization of 21243791 is 18917 × 1123. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 10, 83, 30, 366, 667, 9934, 1255, 91908, 78432, 404364, 620690, 2932654, 9517651, 3916301, 34560200, 590100401, 464029732, 2345736626, 6223240116

Basic calculations (n = 21243791)

Multiplication

n×y

n×2	42487582
n×3	63731373
n×4	84975164
n×5	106218955

Division

n÷y

n÷2	10621895.5
n÷3	7081263.6666667
n÷3	5310947.75
n÷5	4248758.2

Exponentiation

n^y

n²	451298656051681
n³	9.5872943277428E+21
n⁴	2.0367047695405E+29
n⁵	4.3267330452822E+36

Nth Root

^y√n

²√n	4609.0987188386
³√n	276.95593316033
⁴√n	67.890343340115
⁵√n	29.204273300692

Divisors of 21243791

1, 1123, 18917, 21243791

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	-21243790	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 21243791 can be divided by 4 positive divisors. The sum of these divisors (counting 21243791) is 1, the average is 0.25.

Base conversion 21243791

Base	System	Value
2	Binary	1010001000010011110001111
3	Ternary	1110222022000002
4	Quaternary	1101002132033
5	Quinary	20414300131
6	Senary	2035154515
8	Octal	121023617
10	Decimal	21243791
12	Duodecimal	7145a3b
16	Hexadecimal	144278f
20	Vigesimal	6cf99b
36	Base36	cnbtb

Cryptographic Hash Functions

md5	d0c42ede9de7f1f53f27d3fdf8cf0119
sha1	a00c0dd227dc088157c232999a443c66d8e02b27
sha256	f762b98336335c229ec658f98b4f27492e572afb343e2c8c1832ba3236436cda
sha512	d6c90e83589ab4950c80f1dcc7280c316030c0254ec27a9697f2842e81551d675d2258b25344e7153d372cc3da8f7d6bcc9d0a9af6cbaa2011ea4fb2c732a785
ripemd-160	35c0aed11861a001ecad23d90bff2470f64959e9

21243791 as geometric shapes

Circle

Radius = n

Diameter	42487582
Circumference	133478675.47999
Area	1.4177965424269E+15

Sphere

Radius = n

Volume	4.0159164570453E+22
Surface area	5.6711861697076E+15
Circumference	133478675.47999

Square

Length = n

Perimeter	84975164
Area	451298656051681
Diagonal	30043257.348419

Cube

Length = n

Surface area	2707791936310086
Volume	9.5872943277428E+21
Space diagonal	36795325.357374

Equilateral Triangle

Length = n

Perimeter	63731373
Area	1.9541805041727E+14
Altitude	18397662.678687

Triangular Pyramid

Length = n

Surface area	1.9541805041727E+14
Volume	1.129873472063E+21
Height	10014419.11614