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

21123791 (number)

21123791 is an odd 8-digits composite number following 21123790 and preceding 21123792. In scientific notation, it is written as 2.1123791 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 19230912 positive integers (up to 21123791) that are relatively prime to 21123791.

Interesting facts

21123791 has 8 divisors, whose sum is 23061360
The reverse of 21123791 is 19732112
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	2.1123791 × 10^7
Engineering notation	2.1123791 × 10^6

Prime Factorization of 21123791

Prime Factorization 73 × 13 × 22259

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21123791	Product of the distinct prime numbers

The prime factorization of 21123791 is 73 × 13 × 22259. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 9, 10, 31, 228, 21, 6617, 3584, 72553, 9940, 955465, 397466, 620884, 4971286, 43660121, 22765126, 403387913, 880237376, 3974924533, 2988130649

Basic calculations (n = 21123791)

Multiplication

n×y

n×2	42247582
n×3	63371373
n×4	84495164
n×5	105618955

Division

n÷y

n÷2	10561895.5
n÷3	7041263.6666667
n÷3	5280947.75
n÷5	4224758.2

Exponentiation

n^y

n²	446214546211681
n³	9.4257428153354E+21
n⁴	1.991074212509E+29
n⁵	4.2059035530529E+36

Nth Root

^y√n

²√n	4596.0625539694
³√n	276.43346698274
⁴√n	67.794266379757
⁵√n	29.171205209131

Divisors of 21123791

1, 13, 73, 949, 22259, 289367, 1624907, 21123791

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	-21123790	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 21123791 can be divided by 8 positive divisors. The sum of these divisors (counting 21123791) is 1, the average is 0.125.

Base conversion 21123791

Base	System	Value
2	Binary	1010000100101001011001111
3	Ternary	1110202012101122
4	Quaternary	1100211023033
5	Quinary	20401430131
6	Senary	2032431155
8	Octal	120451317
10	Decimal	21123791
12	Duodecimal	70a84bb
16	Hexadecimal	14252cf
20	Vigesimal	6c099b
36	Base36	ckr7z

Cryptographic Hash Functions

md5	a8c1074f339867b66d678b53e3650292
sha1	e83768378f0121d038654eb058334c0f78a4abdf
sha256	d3645d9242e50168fc48af0e32a96018087a1f9a69fb043703e5eef6a17ed3df
sha512	2b709307557d50c2d585efc77c3e31133f27acccabb0b03d86a2a9ddec4bdf182c39e9bae6c77a7a632b928dd981bb2015a7d7b468c4f6263d0b8ff4f68069e1
ripemd-160	56a413773109246a6d22effaf58cecce5f5d9953

21123791 as geometric shapes

Circle

Radius = n

Diameter	42247582
Circumference	132724693.24313
Area	1.4018243403035E+15

Sphere

Radius = n

Volume	3.9482459177713E+22
Surface area	5.6072973612141E+15
Circumference	132724693.24313

Square

Length = n

Perimeter	84495164
Area	446214546211681
Diagonal	29873551.720935

Cube

Length = n

Surface area	2677287277270086
Volume	9.4257428153354E+21
Space diagonal	36587479.260466

Equilateral Triangle

Length = n

Perimeter	63371373
Area	1.9321656627873E+14
Altitude	18293739.630233

Triangular Pyramid

Length = n

Surface area	1.9321656627873E+14
Volume	1.1108344437407E+21
Height	9957850.5736449