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

20921381 (number)

20921381 is an odd 8-digits composite number following 20921380 and preceding 20921382. In scientific notation, it is written as 2.0921381 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 19281600 positive integers (up to 20921381) that are relatively prime to 20921381.

Interesting facts

20921381 has 8 divisors, whose sum is 22566264
The reverse of 20921381 is 18312902
Previous prime number is 1301

Basic properties

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

Name

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

Notation

Scientific notation	2.0921381 × 10^7
Engineering notation	2.0921381 × 10^6

Prime Factorization of 20921381

Prime Factorization 13 × 1301 × 1237

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20921381	Product of the distinct prime numbers

The prime factorization of 20921381 is 13 × 1301 × 1237. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 46, 85, 330, 65, 4450, 794, 97598, 46514, 753173, 532778, 283389, 6412530, 81986295, 53475259, 894005237, 301178742, 4726543739, 3801864516

Basic calculations (n = 20921381)

Multiplication

n×y

n×2	41842762
n×3	62764143
n×4	83685524
n×5	104606905

Division

n÷y

n÷2	10460690.5
n÷3	6973793.6666667
n÷3	5230345.25
n÷5	4184276.2

Exponentiation

n^y

n²	437704182947161
n³	9.1573759767313E+21
n⁴	1.9158495176944E+29
n⁵	4.0082217698351E+36

Nth Root

^y√n

²√n	4573.9896152047
³√n	275.54769525238
⁴√n	67.631276900593
⁵√n	29.115085492952

Divisors of 20921381

1, 13, 1237, 1301, 16081, 16913, 1609337, 20921381

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	-20921380	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 20921381 can be divided by 8 positive divisors. The sum of these divisors (counting 20921381) is 1, the average is 0.125.

Base conversion 20921381

Base	System	Value
2	Binary	1001111110011110000100101
3	Ternary	1110100220201222
4	Quaternary	1033303300211
5	Quinary	20323441011
6	Senary	2024230125
8	Octal	117636045
10	Decimal	20921381
12	Duodecimal	700b345
16	Hexadecimal	13f3c25
20	Vigesimal	6af391
36	Base36	cgf1h

Cryptographic Hash Functions

md5	cc8298dce24b1911cbd69b8298b22dff
sha1	c3ff36079dd070c45d4385e1b9d96176ddbc58d2
sha256	66c4dccd5921374f4e6f77baa3769dde63ec4aad6687c708da785447fce25f5d
sha512	b158591d96be4cee1ad0eea1197831f3c27a90a5dbecc177e2f6199b2ee8759409446a122d827f1053256e23698e9be539fcb45a4753ce4cc24aa9433c30407e
ripemd-160	a6eec90308df1fb69bbe0c9788c5b31f2a1a9d73

20921381 as geometric shapes

Circle

Radius = n

Diameter	41842762
Circumference	131452913.70511
Area	1.3750882455923E+15

Sphere

Radius = n

Volume	3.8358326792878E+22
Surface area	5.5003529823693E+15
Circumference	131452913.70511

Square

Length = n

Perimeter	83685524
Area	437704182947161
Diagonal	29587300.753775

Cube

Length = n

Surface area	2626225097682966
Volume	9.1573759767313E+21
Space diagonal	36236894.856506

Equilateral Triangle

Length = n

Perimeter	62764143
Area	1.8953147088748E+14
Altitude	18118447.428253

Triangular Pyramid

Length = n

Surface area	1.8953147088748E+14
Volume	1.0792071085036E+21
Height	9862433.5845916