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

20921979 (number)

20921979 is an odd 8-digits composite number following 20921978 and preceding 20921980. In scientific notation, it is written as 2.0921979 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 12875040 positive integers (up to 20921979) that are relatively prime to 20921979.

Interesting facts

20921979 has 8 divisors, whose sum is 30041872
The reverse of 20921979 is 97912902
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twenty million nine hundred twenty-one thousand nine hundred seventy-nine

Notation

Scientific notation	2.0921979 × 10^7
Engineering notation	2.0921979 × 10^6

Prime Factorization of 20921979

Prime Factorization 3 × 13 × 536461

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20921979	Product of the distinct prime numbers

The prime factorization of 20921979 is 3 × 13 × 536461. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 12, 59, 410, 472, 5290, 2520, 12989, 59240, 801307, 27302, 7600374, 2001275, 31224683, 95961781, 32823153, 596992563, 7726503865, 8849268407

Basic calculations (n = 20921979)

Multiplication

n×y

n×2	41843958
n×3	62765937
n×4	83687916
n×5	104609895

Division

n÷y

n÷2	10460989.5
n÷3	6973993
n÷3	5230494.75
n÷5	4184395.8

Exponentiation

n^y

n²	437729205276441
n³	9.1581612404804E+21
n⁴	1.9160685715194E+29
n⁵	4.008794641589E+36

Nth Root

^y√n

²√n	4574.0549843656
³√n	275.55032057225
⁴√n	67.631760174977
⁵√n	29.115251931507

Divisors of 20921979

1, 3, 13, 39, 536461, 1609383, 6973993, 20921979

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	-20921978	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 20921979 can be divided by 8 positive divisors. The sum of these divisors (counting 20921979) is 1, the average is 0.125.

Base conversion 20921979

Base	System	Value
2	Binary	1001111110011111001111011
3	Ternary	1110100221120010
4	Quaternary	1033303321323
5	Quinary	20324000404
6	Senary	2024233003
8	Octal	117637173
10	Decimal	20921979
12	Duodecimal	700b763
16	Hexadecimal	13f3e7b
20	Vigesimal	6af4ij
36	Base36	cgfi3

Cryptographic Hash Functions

md5	d2f489779b605af6758362c2649d647a
sha1	6e2dc405dd0ce0f17c9ca85c1bc4a3d2021abf75
sha256	e6af6f5f273cfceafa90be3c785b6c435752d3d001bf9c0b4a33494d05be1f2b
sha512	32646dcfac8f1bd040cf581eeddcac47bbbdb4e90625fc7e0122a388d7c3c46ffe43ee6685451d2d1843c3bff9ceaf62bd686f67b09c5763952c0e0ddac01bb6
ripemd-160	54b6a4898c462000fa824eaf88fbf86173526a86

20921979 as geometric shapes

Circle

Radius = n

Diameter	41843958
Circumference	131456671.04992
Area	1.3751668555582E+15

Sphere

Radius = n

Volume	3.8361616097979E+22
Surface area	5.5006674222327E+15
Circumference	131456671.04992

Square

Length = n

Perimeter	83687916
Area	437729205276441
Diagonal	29588146.453485

Cube

Length = n

Surface area	2626375231658646
Volume	9.1581612404804E+21
Space diagonal	36237930.622889

Equilateral Triangle

Length = n

Perimeter	62765937
Area	1.8954230587389E+14
Altitude	18118965.311445

Triangular Pyramid

Length = n

Surface area	1.8954230587389E+14
Volume	1.0792996527239E+21
Height	9862715.484495