21493839 (number)

21493839 is an odd 8-digits composite number following 21493838 and preceding 21493840. In scientific notation, it is written as 2.1493839 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 14195096 positive integers (up to 21493839) that are relatively prime to 21493839.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand eight hundred thirty-nine

Notation

Scientific notation 2.1493839 × 10^7
Engineering notation 2.1493839 × 10^6

Prime Factorization of 21493839

Prime Factorization 3 × 107 × 66959

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21493839
Product of the distinct prime numbers

The prime factorization of 21493839 is 3 × 107 × 66959. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 9, 73, 55, 542, 752, 6483, 394, 83671, 28511, 829787, 793255, 3296217, 1673555, 26788851, 32974623, 591030977, 137311345, 4553949852, 8798504434

Basic calculations (n = 21493839)

Multiplication

n×y
n×2 42987678
n×3 64481517
n×4 85975356
n×5 107469195

Division

n÷y
n÷2 10746919.5
n÷3 7164613
n÷3 5373459.75
n÷5 4298767.8

Exponentiation

ny
n2 461985114957921
n3 9.929833681302E+21
n4 2.1343024644268E+29
n5 4.5874353547694E+36

Nth Root

y√n
2√n 4636.144842431
3√n 278.03832520292
4√n 68.089241752505
5√n 29.272701103872

Divisors of 21493839

1, 3, 107, 321, 66959, 200877, 7164613, 21493839

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 -21493838
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 21493839 can be divided by 8 positive divisors. The sum of these divisors (counting 21493839) is 1, the average is 0.125.

Base conversion 21493839

Base System Value
2 Binary 1010001111111100001001111
3 Ternary 1111110000000010
4 Quaternary 1101333201033
5 Quinary 21000300324
6 Senary 2044404303
8 Octal 121774117
10 Decimal 21493839
12 Duodecimal 7246693
16 Hexadecimal 147f84f
20 Vigesimal 6e6ebj
36 Base36 csor3

Cryptographic Hash Functions

md5 dca18e9dc974a3948ab6635939aa303b
sha1 72e309c853f04b8ec4893a3b1f39448454cee4bc
sha256 ff0e8cf666b486a65ee49b8ed5af99ee819c659435180ae9150fc52c3d0af050
sha512 0d0eddebf6181f8ab5ca2fbb8f13fedf07841776a1fc35113eae8cbd75fbd4b9cb4207cffb7c24b9131bca88ab93e0736441a5a8d5f9d06c70751ebb82c932b9
ripemd-160 0a30465e36abcedad02c615ac495e42f1f8ab1d2

21493839 as geometric shapes

Circle

Radius = n
Diameter 42987678
Circumference 135049773.39968
Area 1.4513690432196E+15

Sphere

Radius = n
Volume 4.1593990059396E+22
Surface area 5.8054761728786E+15
Circumference 135049773.39968

Square

Length = n
Perimeter 85975356
Area 461985114957921
Diagonal 30396878.621264

Cube

Length = n
Surface area 2771910689747526
Volume 9.929833681302E+21
Space diagonal 37228421.197705

Equilateral Triangle

Length = n
Perimeter 64481517
Area 2.0004542286192E+14
Altitude 18614210.598853

Triangular Pyramid

Length = n
Surface area 2.0004542286192E+14
Volume 1.1702421220172E+21
Height 10132292.873755