21279986 (number)

21279986 is an even 8-digits composite number following 21279985 and preceding 21279987. In scientific notation, it is written as 2.1279986 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 8418384 positive integers (up to 21279986) that are relatively prime to 21279986.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1279986 × 10^7
Engineering notation 2.1279986 × 10^6

Prime Factorization of 21279986

Prime Factorization 2 × 13 × 7 × 116923

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21279986
Product of the distinct prime numbers

The prime factorization of 21279986 is 2 × 13 × 7 × 116923. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 5, 96, 93, 27, 306, 1472, 8051, 98402, 67852, 6936, 492506, 6548881, 564162, 38432611, 70205917, 614427332, 748468678, 2009198669, 8455368734

Basic calculations (n = 21279986)

Multiplication

n×y
n×2 42559972
n×3 63839958
n×4 85119944
n×5 106399930

Division

n÷y
n÷2 10639993
n÷3 7093328.6666667
n÷3 5319996.5
n÷5 4255997.2

Exponentiation

ny
n2 452837804160196
n3 9.6363821327997E+21
n4 2.0506207687663E+29
n5 4.3637181250656E+36

Nth Root

y√n
2√n 4613.0235204256
3√n 277.11313567672
4√n 67.919242637309
5√n 29.214218126559

Divisors of 21279986

1, 2, 7, 13, 14, 26, 91, 182, 116923, 233846, 818461, 1519999, 1636922, 3039998, 10639993, 21279986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21279985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21279986 can be divided by 16 positive divisors. The sum of these divisors (counting 21279986) is 1, the average is 0.0625.

Base conversion 21279986

Base System Value
2 Binary 1010001001011010011110010
3 Ternary 1111001010122122
4 Quaternary 1101023103302
5 Quinary 20421424421
6 Senary 2040034242
8 Octal 121132362
10 Decimal 21279986
12 Duodecimal 7162982
16 Hexadecimal 144b4f2
20 Vigesimal 6cjjj6
36 Base36 co3qq

Cryptographic Hash Functions

md5 5e8bfd08555e9b8b51f96fc8297125bb
sha1 8cdc14951c1747d1affc328dff6a44c030dd6db6
sha256 7bfcb8762bddbb04e88117d53b35b4817b4d902b313fd9d0d0e4452ed453c04d
sha512 1e5248bf697d6cf2efa92ccdf98f5091e94af7f68bbd5a72acf741c8b571e6ac20a718bb586809e855b204f9adb0587bcded08d8f1c00a58cc9204dffb32c22b
ripemd-160 57433c552c97b457142baa48f8e4a05bf30f2e9a

21279986 as geometric shapes

Circle

Radius = n
Diameter 42559972
Circumference 133706095.37219
Area 1.4226319188174E+15

Sphere

Radius = n
Volume 4.036478308745E+22
Surface area 5.6905276752696E+15
Circumference 133706095.37219

Square

Length = n
Perimeter 85119944
Area 452837804160196
Diagonal 30094444.80831

Cube

Length = n
Surface area 2717026824961176
Volume 9.6363821327997E+21
Space diagonal 36858016.936354

Equilateral Triangle

Length = n
Perimeter 63839958
Area 1.9608452109835E+14
Altitude 18429008.468177

Triangular Pyramid

Length = n
Surface area 1.9608452109835E+14
Volume 1.1356585253679E+21
Height 10031481.60277