21494868 (number)

21494868 is an even 8-digits composite number following 21494867 and preceding 21494869. In scientific notation, it is written as 2.1494868 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 12 positive divisors. There are 6743424 positive integers (up to 21494868) that are relatively prime to 21494868.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand eight hundred sixty-eight

Notation

Scientific notation 2.1494868 × 10^7
Engineering notation 2.1494868 × 10^6

Prime Factorization of 21494868

Prime Factorization 2 × 2 × 51 × 105367

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10747434
Product of the distinct prime numbers

The prime factorization of 21494868 is 2 × 2 × 51 × 105367. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 1, 46, 26, 71, 344, 3102, 7905, 45924, 41094, 100677, 465080, 8059172, 2059853, 53182280, 22236644, 476096746, 864493132, 2221137958, 8960114567

Basic calculations (n = 21494868)

Multiplication

n×y
n×2 42989736
n×3 64484604
n×4 85979472
n×5 107474340

Division

n÷y
n÷2 10747434
n÷3 7164956
n÷3 5373717
n÷5 4298973.6

Exponentiation

ny
n2 462029350337424
n3 9.9312598976287E+21
n4 2.1347112057322E+29
n5 4.5885335585335E+36

Nth Root

y√n
2√n 4636.2558169281
3√n 278.04276208475
4√n 68.090056667094
5√n 29.27298137984

Divisors of 21494868

1, 2, 4, 51, 102, 204, 105367, 210734, 421468, 5373717, 10747434, 21494868

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21494867
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21494868 can be divided by 12 positive divisors. The sum of these divisors (counting 21494868) is 1, the average is 0.083333333333333.

Base conversion 21494868

Base System Value
2 Binary 1010001111111110001010100
3 Ternary 1111110001102020
4 Quaternary 1101333301110
5 Quinary 21000313433
6 Senary 2044413140
8 Octal 121776124
10 Decimal 21494868
12 Duodecimal 72471b0
16 Hexadecimal 147fc54
20 Vigesimal 6e6h38
36 Base36 cspjo

Cryptographic Hash Functions

md5 723cd21c15ba9689232befaaef7cb8ec
sha1 aa191ef2f30ed1ccb0d97dde6979bdc781ff2737
sha256 26873c15f9e7873b767ff84506b3d87ea299b0cd180a0146271d7c02cdfbab2f
sha512 db4f4af2a092bb93e171ad0a90d6e2d341a189eec503504a903cacb09e6ee30d4ed48dfa546a3f2e53e032414929edc171f6799739194cdbec755240edc888af
ripemd-160 131a15b980c527faa4a23ccd3b1e5e43e9528eba

21494868 as geometric shapes

Circle

Radius = n
Diameter 42989736
Circumference 135056238.79736
Area 1.4515080127629E+15

Sphere

Radius = n
Volume 4.1599964180375E+22
Surface area 5.8060320510517E+15
Circumference 135056238.79736

Square

Length = n
Perimeter 85979472
Area 462029350337424
Diagonal 30398333.847019

Cube

Length = n
Surface area 2772176102024544
Volume 9.9312598976287E+21
Space diagonal 37230203.477986

Equilateral Triangle

Length = n
Perimeter 64484604
Area 2.0006457734311E+14
Altitude 18615101.738993

Triangular Pyramid

Length = n
Surface area 2.0006457734311E+14
Volume 1.1704102032232E+21
Height 10132777.949006