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

21385979 (number)

21385979 is an odd 8-digits composite number following 21385978 and preceding 21385980. In scientific notation, it is written as 2.1385979 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 21244200 positive integers (up to 21385979) that are relatively prime to 21385979.

Interesting facts

21385979 has 4 divisors, whose sum is 21527760
The reverse of 21385979 is 97958312
Previous prime number is 151

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

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

Notation

Scientific notation	2.1385979 × 10^7
Engineering notation	2.1385979 × 10^6

Prime Factorization of 21385979

Prime Factorization 151 × 141629

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21385979	Product of the distinct prime numbers

The prime factorization of 21385979 is 151 × 141629. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 93, 32, 574, 348, 572, 416, 98421, 15429, 427339, 42227, 9303295, 3833231, 8218515, 60869317, 396094211, 421125263, 1392813833, 4536051696

Basic calculations (n = 21385979)

Multiplication

n×y

n×2	42771958
n×3	64157937
n×4	85543916
n×5	106929895

Division

n÷y

n÷2	10692989.5
n÷3	7128659.6666667
n÷3	5346494.75
n÷5	4277195.8

Exponentiation

n^y

n²	457360097788441
n³	9.7810934467415E+21
n⁴	2.0917825904905E+29
n⁵	4.4734818552796E+36

Nth Root

^y√n

²√n	4624.4977024537
³√n	277.57246274723
⁴√n	68.003659478397
⁵√n	29.243262804268

Divisors of 21385979

1, 151, 141629, 21385979

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	-21385978	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 21385979 can be divided by 4 positive divisors. The sum of these divisors (counting 21385979) is 1, the average is 0.25.

Base conversion 21385979

Base	System	Value
2	Binary	1010001100101001011111011
3	Ternary	1111020112001022
4	Quaternary	1101211023323
5	Quinary	20433322404
6	Senary	2042213055
8	Octal	121451373
10	Decimal	21385979
12	Duodecimal	71b418b
16	Hexadecimal	14652fb
20	Vigesimal	6dd4ij
36	Base36	cqdiz

Cryptographic Hash Functions

md5	6a8252fbe25644ae702f73c7201d3e3b
sha1	780b5c45142e630dbffa8f7aae5098b08712fe40
sha256	df7b4ff23a8a1b1b859da9faedfb7546323f1885130ef63d0c00830294fff99a
sha512	08aadeaa3820ce674193c5e2038628b25b689381f8df3d2e725568431e5d3947101f44c9ccfa8b52dc9bff94ceeccfed04426ca81f37c19e35b613aa1685fe56
ripemd-160	c0cba10488845a786b096dd00531a91670975350

21385979 as geometric shapes

Circle

Radius = n

Diameter	42771958
Circumference	134372069.03245
Area	1.4368391232573E+15

Sphere

Radius = n

Volume	4.0970948421811E+22
Surface area	5.7473564930291E+15
Circumference	134372069.03245

Square

Length = n

Perimeter	85543916
Area	457360097788441
Diagonal	30244341.546426

Cube

Length = n

Surface area	2744160586730646
Volume	9.7810934467415E+21
Space diagonal	37041602.197601

Equilateral Triangle

Length = n

Perimeter	64157937
Area	1.9804273168106E+14
Altitude	18520801.098801

Triangular Pyramid

Length = n

Surface area	1.9804273168106E+14
Volume	1.1527129172684E+21
Height	10081447.182142