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

21279991 (number)

21279991 is an odd 8-digits composite number following 21279990 and preceding 21279992. In scientific notation, it is written as 2.1279991 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 20354752 positive integers (up to 21279991) that are relatively prime to 21279991.

Interesting facts

21279991 has 4 divisors, whose sum is 22205232
The reverse of 21279991 is 19997212
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	2.1279991 × 10^7
Engineering notation	2.1279991 × 10^6

Prime Factorization of 21279991

Prime Factorization 23 × 925217

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21279991	Product of the distinct prime numbers

The prime factorization of 21279991 is 23 × 925217. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 15, 66, 716, 502, 7036, 3442, 38259, 82440, 623758, 527508, 3519548, 9441208, 3033064, 58967770, 704134026, 964967744, 3464616022, 5254227018

Basic calculations (n = 21279991)

Multiplication

n×y

n×2	42559982
n×3	63839973
n×4	85119964
n×5	106399955

Division

n÷y

n÷2	10639995.5
n÷3	7093330.3333333
n÷3	5319997.75
n÷5	4255998.2

Exponentiation

n^y

n²	452838016960081
n³	9.6363889253684E+21
n⁴	2.0506226960434E+29
n⁵	4.3637232516199E+36

Nth Root

^y√n

²√n	4613.0240623695
³√n	277.11315738045
⁴√n	67.919246626928
⁵√n	29.214219499408

Divisors of 21279991

1, 23, 925217, 21279991

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	-21279990	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 21279991 can be divided by 4 positive divisors. The sum of these divisors (counting 21279991) is 1, the average is 0.25.

Base conversion 21279991

Base	System	Value
2	Binary	1010001001011010011110111
3	Ternary	1111001010122211
4	Quaternary	1101023103313
5	Quinary	20421424431
6	Senary	2040034251
8	Octal	121132367
10	Decimal	21279991
12	Duodecimal	7162987
16	Hexadecimal	144b4f7
20	Vigesimal	6cjjjb
36	Base36	co3qv

Cryptographic Hash Functions

md5	d41ce76733da9b000aaa5ce323ff4d40
sha1	b83cc67f9fd8a6929d2064978990c367a844a031
sha256	cc40263ed8613843182635cf3664d9206964cf821f0332d1c9b3403327435793
sha512	dd68b45220d17b78eaccfd9e319768c8383004c62e73a4c626fb5370b2a9829faa9d1fa6b2be5c8b91a8b4962ad92d3331c810f1a4b8fd1f11ffb56a20f944f8
ripemd-160	c11e8615c804d611dec9d8dd653f1e802d1715db

21279991 as geometric shapes

Circle

Radius = n

Diameter	42559982
Circumference	133706126.78811
Area	1.422632587348E+15

Sphere

Radius = n

Volume	4.0364811540095E+22
Surface area	5.6905303493918E+15
Circumference	133706126.78811

Square

Length = n

Perimeter	85119964
Area	452838016960081
Diagonal	30094451.879377

Cube

Length = n

Surface area	2717028101760486
Volume	9.6363889253684E+21
Space diagonal	36858025.596608

Equilateral Triangle

Length = n

Perimeter	63839973
Area	1.960846132434E+14
Altitude	18429012.798304

Triangular Pyramid

Length = n

Surface area	1.960846132434E+14
Volume	1.1356593258798E+21
Height	10031483.959792