21490843 (number)

21490843 is an odd 8-digits composite number following 21490842 and preceding 21490844. In scientific notation, it is written as 2.1490843 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 17744400 positive integers (up to 21490843) that are relatively prime to 21490843.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand eight hundred forty-three

Notation

Scientific notation 2.1490843 × 10^7
Engineering notation 2.1490843 × 10^6

Prime Factorization of 21490843

Prime Factorization 19 × 31 × 11 × 31 × 107

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 693253
Product of the distinct prime numbers

The prime factorization of 21490843 is 19 × 31 × 11 × 31 × 107. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 4, 89, 64, 565, 857, 4248, 7608, 36796, 94311, 484956, 603725, 8476563, 3617240, 53603635, 70549589, 815673604, 625768708, 9308198090, 8710378943

Basic calculations (n = 21490843)

Multiplication

n×y
n×2 42981686
n×3 64472529
n×4 85963372
n×5 107454215

Division

n÷y
n÷2 10745421.5
n÷3 7163614.3333333
n÷3 5372710.75
n÷5 4298168.6

Exponentiation

ny
n2 461856332850649
n3 9.925681937849E+21
n4 2.1331127219425E+29
n5 4.5842390608569E+36

Nth Root

y√n
2√n 4635.8217178835
3√n 278.02540612831
4√n 68.086868909383
5√n 29.271885001149

Divisors of 21490843

1, 11, 19, 31, 107, 209, 341, 589, 961, 1177, 2033, 3317, 6479, 10571, 18259, 22363, 36487, 63023, 102827, 200849, 693253, 1131097, 1953713, 21490843

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21490842
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490843 can be divided by 24 positive divisors. The sum of these divisors (counting 21490843) is 1, the average is 0.041666666666667.

Base conversion 21490843

Base System Value
2 Binary 1010001111110110010011011
3 Ternary 1111102211220011
4 Quaternary 1101332302123
5 Quinary 21000201333
6 Senary 2044342351
8 Octal 121766233
10 Decimal 21490843
12 Duodecimal 72449b7
16 Hexadecimal 147ec9b
20 Vigesimal 6e6723
36 Base36 csmfv

Cryptographic Hash Functions

md5 b7d07d940ef4b2c0e1b8be62032fb3d2
sha1 c3865ee421aea5eb330b360804f3cb1e92e6aefa
sha256 4a4114f05237dd5f53e06462be47619b97df89fa24c004ffb90a6b29d8ff276d
sha512 530adb83a90917ffbf5c29042a48a3b3d8fd6d254fc448f99a195cfd2c690f2703c02f3a89de96e2fd656aa0c7a5202e1ce3f268d2f5489b00ecbfe2145593da
ripemd-160 eb982de273b75a31d1c67a804ecce23519d1c251

21490843 as geometric shapes

Circle

Radius = n
Diameter 42981686
Circumference 135030948.9765
Area 1.4509644622975E+15

Sphere

Radius = n
Volume 4.1576599277087E+22
Surface area 5.8038578491901E+15
Circumference 135030948.9765

Square

Length = n
Perimeter 85963372
Area 461856332850649
Diagonal 30392641.637431

Cube

Length = n
Surface area 2771137997103894
Volume 9.925681937849E+21
Space diagonal 37223231.973486

Equilateral Triangle

Length = n
Perimeter 64472529
Area 1.9998965857369E+14
Altitude 18611615.986743

Triangular Pyramid

Length = n
Surface area 1.9998965857369E+14
Volume 1.169752834359E+21
Height 10130880.54581