21279989 (number)

21279989 is an odd 8-digits composite number following 21279988 and preceding 21279990. In scientific notation, it is written as 2.1279989 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 20908800 positive integers (up to 21279989) that are relatively prime to 21279989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1279989 × 10^7
Engineering notation 2.1279989 × 10^6

Prime Factorization of 21279989

Prime Factorization 89 × 181 × 1321

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21279989
Product of the distinct prime numbers

The prime factorization of 21279989 is 89 × 181 × 1321. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 100, 66, 267, 975, 4887, 3327, 6414, 69919, 118740, 695830, 1430705, 2938813, 33818078, 78020577, 45953894, 441286986, 2369251191, 6973474487

Basic calculations (n = 21279989)

Multiplication

n×y
n×2 42559978
n×3 63839967
n×4 85119956
n×5 106399945

Division

n÷y
n÷2 10639994.5
n÷3 7093329.6666667
n÷3 5319997.25
n÷5 4255997.8

Exponentiation

ny
n2 452837931840121
n3 9.6363862083405E+21
n4 2.0506219251324E+29
n5 4.3637212009976E+36

Nth Root

y√n
2√n 4613.023845592
3√n 277.11314869896
4√n 67.919245031081
5√n 29.214218950269

Divisors of 21279989

1, 89, 181, 1321, 16109, 117569, 239101, 21279989

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 -21279988
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 21279989 can be divided by 8 positive divisors. The sum of these divisors (counting 21279989) is 1, the average is 0.125.

Base conversion 21279989

Base System Value
2 Binary 1010001001011010011110101
3 Ternary 1111001010122202
4 Quaternary 1101023103311
5 Quinary 20421424424
6 Senary 2040034245
8 Octal 121132365
10 Decimal 21279989
12 Duodecimal 7162985
16 Hexadecimal 144b4f5
20 Vigesimal 6cjjj9
36 Base36 co3qt

Cryptographic Hash Functions

md5 cb296bbb926eac0e08ee151c33289255
sha1 9a64b9f9c65875b946ad8690977e24aa1e011aef
sha256 4aa78590321425f2aee61ca3fa59da2913213eed27c4a5b2a066dcb2283581d4
sha512 9bc6fb951a7fd5d3583b0c67b7d8a0d09f145c22a8d737147693ed349970ac4b7f8e05ef50d4c18dbf6b42d46d19033666be33bf08f709844c11f70f6499738f
ripemd-160 c7f7e479c8481b3f58a39370a30bac4df2e0c35f

21279989 as geometric shapes

Circle

Radius = n
Diameter 42559978
Circumference 133706114.22174
Area 1.4226323199357E+15

Sphere

Radius = n
Volume 4.0364800159035E+22
Surface area 5.6905292797429E+15
Circumference 133706114.22174

Square

Length = n
Perimeter 85119956
Area 452837931840121
Diagonal 30094449.05095

Cube

Length = n
Surface area 2717027591040726
Volume 9.6363862083405E+21
Space diagonal 36858022.132507

Equilateral Triangle

Length = n
Perimeter 63839967
Area 1.9608457638538E+14
Altitude 18429011.066253

Triangular Pyramid

Length = n
Surface area 1.9608457638538E+14
Volume 1.135659005675E+21
Height 10031483.016983