21494730 (number)

21494730 is an even 8-digits composite number following 21494729 and preceding 21494731. In scientific notation, it is written as 2.1494730 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 5731920 positive integers (up to 21494730) that are relatively prime to 21494730.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand seven hundred thirty

Notation

Scientific notation 2.1494730 × 10^7
Engineering notation 2.1494730 × 10^6

Prime Factorization of 21494730

Prime Factorization 2 × 15 × 716491

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21494730
Product of the distinct prime numbers

The prime factorization of 21494730 is 2 × 15 × 716491. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 6, 65, 42, 356, 738, 9097, 8446, 45605, 67537, 42368, 605182, 2119212, 9163300, 18028783, 15739689, 786686204, 704593626, 571670067, 5751714484

Basic calculations (n = 21494730)

Multiplication

n×y
n×2 42989460
n×3 64484190
n×4 85978920
n×5 107473650

Division

n÷y
n÷2 10747365
n÷3 7164910
n÷3 5373682.5
n÷5 4298946

Exponentiation

ny
n2 462023417772900
n3 9.9310686187057E+21
n4 2.1346563857055E+29
n5 4.5883862653516E+36

Nth Root

y√n
2√n 4636.2409342052
3√n 278.04216705925
4√n 68.089947379956
5√n 29.272943792433

Divisors of 21494730

1, 2, 15, 30, 716491, 1432982, 10747365, 21494730

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 -21494729
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 21494730 can be divided by 8 positive divisors. The sum of these divisors (counting 21494730) is 1, the average is 0.125.

Base conversion 21494730

Base System Value
2 Binary 1010001111111101111001010
3 Ternary 1111110001020010
4 Quaternary 1101333233022
5 Quinary 21000312410
6 Senary 2044412350
8 Octal 121775712
10 Decimal 21494730
12 Duodecimal 72470b6
16 Hexadecimal 147fbca
20 Vigesimal 6e6gga
36 Base36 cspfu

Cryptographic Hash Functions

md5 78189b3c1f9f73a823afe480f4611ba4
sha1 74d177ee6e08cff37f8e5624e1c983486d018f4b
sha256 eac7a3dce186f8a3a75e1d8769a9d8610ebbdc6a699d2913dd71faee6de3956d
sha512 5da1351aa03e01e70e05afb00f85fcd5fb49d394ea3e770f79b71a9d6c139e1a51441d613fdb3a1bf6f53dfcf4b85f8764c79ed3564371f7f6b6aa10b37f7035
ripemd-160 d49e5325f167853f81356fd1555362d2494f6ab4

21494730 as geometric shapes

Circle

Radius = n
Diameter 42989460
Circumference 135055371.71779
Area 1.4514893750618E+15

Sphere

Radius = n
Volume 4.1599162953096E+22
Surface area 5.8059575002472E+15
Circumference 135055371.71779

Square

Length = n
Perimeter 85978920
Area 462023417772900
Diagonal 30398138.685548

Cube

Length = n
Surface area 2772140506637400
Volume 9.9310686187057E+21
Space diagonal 37229964.454975

Equilateral Triangle

Length = n
Perimeter 64484190
Area 2.0006200846732E+14
Altitude 18614982.227487

Triangular Pyramid

Length = n
Surface area 2.0006200846732E+14
Volume 1.170387660786E+21
Height 10132712.895183