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

20921391 (number)

20921391 is an odd 8-digits composite number following 20921390 and preceding 20921392. In scientific notation, it is written as 2.0921391 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 13570416 positive integers (up to 20921391) that are relatively prime to 20921391.

Interesting facts

20921391 has 4 divisors, whose sum is 20984552
The reverse of 20921391 is 19312902
Previous prime number is 333

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	2.0921391 × 10^7
Engineering notation	2.0921391 × 10^6

Prime Factorization of 20921391

Prime Factorization 333 × 62827

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20921391	Product of the distinct prime numbers

The prime factorization of 20921391 is 333 × 62827. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 7, 64, 94, 907, 639, 1492, 7530, 96625, 99523, 409387, 39897, 1065905, 9770188, 52211030, 87479889, 76128649, 91210431, 2300781068, 1261583187

Basic calculations (n = 20921391)

Multiplication

n×y

n×2	41842782
n×3	62764173
n×4	83685564
n×5	104606955

Division

n÷y

n÷2	10460695.5
n÷3	6973797
n÷3	5230347.75
n÷5	4184278.2

Exponentiation

n^y

n²	437704601374881
n³	9.157389107863E+21
n⁴	1.9158531806474E+29
n⁵	4.0082313490919E+36

Nth Root

^y√n

²√n	4573.9907083421
³√n	275.54773915446
⁴√n	67.631284982189
⁵√n	29.115088276237

Divisors of 20921391

1, 333, 62827, 20921391

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	-20921390	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 20921391 can be divided by 4 positive divisors. The sum of these divisors (counting 20921391) is 1, the average is 0.25.

Base conversion 20921391

Base	System	Value
2	Binary	1001111110011110000101111
3	Ternary	1110100220202100
4	Quaternary	1033303300233
5	Quinary	20323441031
6	Senary	2024230143
8	Octal	117636057
10	Decimal	20921391
12	Duodecimal	700b353
16	Hexadecimal	13f3c2f
20	Vigesimal	6af39b
36	Base36	cgf1r

Cryptographic Hash Functions

md5	5f1529910c55aa60e3e67e92e3570fd0
sha1	f4db594d2dd89740f6a562c6674aa2b912ff15da
sha256	314621a1219549b80d79a7c4dcb4cca1822e053e50e98f42f9c7740a2d93b49e
sha512	8ea683404b56033a9b476e90990be71418dde245c824491580cdbb4912035fe42e10d0e5381b6ab5257a90ffe31f7bf026672979b69501d75ac91ad2857e2de6
ripemd-160	c4c441d63ac1d57e13c01cbf47e9b9b4e5abd357

20921391 as geometric shapes

Circle

Radius = n

Diameter	41842782
Circumference	131452976.53696
Area	1.3750895601218E+15

Sphere

Radius = n

Volume	3.8358381796434E+22
Surface area	5.5003582404871E+15
Circumference	131452976.53696

Square

Length = n

Perimeter	83685564
Area	437704601374881
Diagonal	29587314.89591

Cube

Length = n

Surface area	2626227608249286
Volume	9.157389107863E+21
Space diagonal	36236912.177014

Equilateral Triangle

Length = n

Perimeter	62764173
Area	1.8953165207199E+14
Altitude	18118456.088507

Triangular Pyramid

Length = n

Surface area	1.8953165207199E+14
Volume	1.0792086560223E+21
Height	9862438.2986368