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

20921389 (number)

20921389 is an odd 8-digits composite number following 20921388 and preceding 20921390. In scientific notation, it is written as 2.0921389 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 20725756 positive integers (up to 20921389) that are relatively prime to 20921389.

Interesting facts

20921389 has 4 divisors, whose sum is 21117024
The reverse of 20921389 is 98312902
Previous prime number is 107

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty million nine hundred twenty-one thousand three hundred eighty-nine

Notation

Scientific notation	2.0921389 × 10^7
Engineering notation	2.0921389 × 10^6

Prime Factorization of 20921389

Prime Factorization 107 × 195527

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20921389	Product of the distinct prime numbers

The prime factorization of 20921389 is 107 × 195527. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 9, 59, 68, 200, 612, 8835, 8808, 52721, 92015, 583125, 130340, 4901167, 9513835, 19598042, 46239473, 153121906, 751596533, 2924814880, 4031084730

Basic calculations (n = 20921389)

Multiplication

n×y

n×2	41842778
n×3	62764167
n×4	83685556
n×5	104606945

Division

n÷y

n÷2	10460694.5
n÷3	6973796.3333333
n÷3	5230347.25
n÷5	4184277.8

Exponentiation

n^y

n²	437704517689321
n³	9.1573864816357E+21
n⁴	1.9158524480564E+29
n⁵	4.008229433239E+36

Nth Root

^y√n

²√n	4573.9904897146
³√n	275.54773037405
⁴√n	67.63128336587
⁵√n	29.11508771958

Divisors of 20921389

1, 107, 195527, 20921389

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	-20921388	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 20921389 can be divided by 4 positive divisors. The sum of these divisors (counting 20921389) is 1, the average is 0.25.

Base conversion 20921389

Base	System	Value
2	Binary	1001111110011110000101101
3	Ternary	1110100220202021
4	Quaternary	1033303300231
5	Quinary	20323441024
6	Senary	2024230141
8	Octal	117636055
10	Decimal	20921389
12	Duodecimal	700b351
16	Hexadecimal	13f3c2d
20	Vigesimal	6af399
36	Base36	cgf1p

Cryptographic Hash Functions

md5	94147da48e0b1254ee65003d129029d5
sha1	35c3fa7bd7d999ed1d364b18413b8781775b2d1b
sha256	64816dd6bcbb95038cbca89d676602471e27f96268f9ecae07a2ca28fc2c1352
sha512	1d6a4a4fcbe16a56b6cbc7783433ac6f91ce5f761da28470dde46b2ec0f82e747fe532a7c0d3b93d590b34d7910b63d2b093234253096b610045c85d2c8cc5f9
ripemd-160	cb665389710701b7497538576784bb5b208f2315

20921389 as geometric shapes

Circle

Radius = n

Diameter	41842778
Circumference	131452963.97059
Area	1.3750892972158E+15

Sphere

Radius = n

Volume	3.8358370795719E+22
Surface area	5.5003571888633E+15
Circumference	131452963.97059

Square

Length = n

Perimeter	83685556
Area	437704517689321
Diagonal	29587312.067483

Cube

Length = n

Surface area	2626227106135926
Volume	9.1573864816357E+21
Space diagonal	36236908.712913

Equilateral Triangle

Length = n

Perimeter	62764167
Area	1.8953161583508E+14
Altitude	18118454.356456

Triangular Pyramid

Length = n

Surface area	1.8953161583508E+14
Volume	1.0792083465184E+21
Height	9862437.3558278