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

21279939 (number)

21279939 is an odd 8-digits composite number following 21279938 and preceding 21279940. In scientific notation, it is written as 2.1279939 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 13697376 positive integers (up to 21279939) that are relatively prime to 21279939.

Interesting facts

21279939 has 4 divisors, whose sum is 21524624
The reverse of 21279939 is 93997212
Previous prime number is 87

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

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

Notation

Scientific notation	2.1279939 × 10^7
Engineering notation	2.1279939 × 10^6

Prime Factorization of 21279939

Prime Factorization 87 × 244597

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21279939	Product of the distinct prime numbers

The prime factorization of 21279939 is 87 × 244597. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 8, 28, 23, 630, 975, 740, 352, 10682, 60580, 597439, 990821, 2249484, 9432540, 24917868, 93982298, 857042325, 122609383, 1051580050, 2317064883

Basic calculations (n = 21279939)

Multiplication

n×y

n×2	42559878
n×3	63839817
n×4	85119756
n×5	106399695

Division

n÷y

n÷2	10639969.5
n÷3	7093313
n÷3	5319984.75
n÷5	4255987.8

Exponentiation

n^y

n²	452835803843721
n³	9.6363182828103E+21
n⁴	2.0506026524279E+29
n⁵	4.3636699356904E+36

Nth Root

^y√n

²√n	4613.0184261501
³√n	277.11293166144
⁴√n	67.919205134852
⁵√n	29.214205221762

Divisors of 21279939

1, 87, 244597, 21279939

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	-21279938	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 21279939 can be divided by 4 positive divisors. The sum of these divisors (counting 21279939) is 1, the average is 0.25.

Base conversion 21279939

Base	System	Value
2	Binary	1010001001011010011000011
3	Ternary	1111001010120220
4	Quaternary	1101023103003
5	Quinary	20421424224
6	Senary	2040034123
8	Octal	121132303
10	Decimal	21279939
12	Duodecimal	7162943
16	Hexadecimal	144b4c3
20	Vigesimal	6cjjgj
36	Base36	co3pf

Cryptographic Hash Functions

md5	ef62e8f6cc0a1c3ab61c41cec31e50fa
sha1	8133a8590842760c6a75134b230d2249325a8644
sha256	3c7fb204b164650daf06ccbfcdad3065acbd5563faac0d2165efbf8b87dc8599
sha512	3269016836955203ccf596cd6f1251fb349884b8aa6d88b541d00340cad61f9ccbfecb68c9b297af8909a5a043b478b9b316bf658233d8a355df2af3eb4e3871
ripemd-160	af81e9f6e78e9a73ba1890431f0f8de25ad95ec4

21279939 as geometric shapes

Circle

Radius = n

Diameter	42559878
Circumference	133705800.06248
Area	1.4226256346379E+15

Sphere

Radius = n

Volume	4.036451563324E+22
Surface area	5.6905025385514E+15
Circumference	133705800.06248

Square

Length = n

Perimeter	85119756
Area	452835803843721
Diagonal	30094378.340272

Cube

Length = n

Surface area	2717014823062326
Volume	9.6363182828103E+21
Space diagonal	36857935.529966

Equilateral Triangle

Length = n

Perimeter	63839817
Area	1.960836549359E+14
Altitude	18428967.764983

Triangular Pyramid

Length = n

Surface area	1.960836549359E+14
Volume	1.1356510005745E+21
Height	10031459.446757