21490747 (number)

21490747 is an odd 8-digits composite number following 21490746 and preceding 21490748. In scientific notation, it is written as 2.1490747 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 20793600 positive integers (up to 21490747) that are relatively prime to 21490747.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1490747 × 10^7
Engineering notation 2.1490747 × 10^6

Prime Factorization of 21490747

Prime Factorization 37 × 191 × 3041

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21490747
Product of the distinct prime numbers

The prime factorization of 21490747 is 37 × 191 × 3041. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21490747)

Multiplication

n×y
n×2 42981494
n×3 64472241
n×4 85962988
n×5 107453735

Division

n÷y
n÷2 10745373.5
n÷3 7163582.3333333
n÷3 5372686.75
n÷5 4298149.4

Exponentiation

ny
n2 461852206618009
n3 9.9255489238194E+21
n4 2.1330746075792E+29
n5 4.584136672361E+36

Nth Root

y√n
2√n 4635.8113637205
3√n 278.02499214612
4√n 68.086792872924
5√n 29.27185884949

Divisors of 21490747

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 -21490746
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 21490747 can be divided by 8 positive divisors. The sum of these divisors (counting 21490747) is 1, the average is 0.125.

Base conversion 21490747

Base System Value
2 Binary 1010001111110110000111011
3 Ternary 1111102211202121
4 Quaternary 1101332300323
5 Quinary 21000200442
6 Senary 2044342111
8 Octal 121766073
10 Decimal 21490747
12 Duodecimal 7244937
16 Hexadecimal 147ec3b
20 Vigesimal 6e66h7
36 Base36 csmd7

Cryptographic Hash Functions

md5 e7478a1e0f71c8df6cdd1723d519bea8
sha1 3947eb9cf73d33037dd7659b9214426fb31791c9
sha256 0cc5a724c60c8f20c230db8989d3aa5f328b736cab9460f9547d9d94216dcdc8
sha512 38897f58f92eb9fa2927e171a471e9d0e5530ab9a2bcbaf0d0e2874b413141e844d1fbf5b6dd8fe3947304205b7d603db9ea527449f4aa8c657754afbd9f2a61
ripemd-160 315fcc429d1b94e5e45a853f3d1e88a1a740ec53

21490747 as geometric shapes

Circle

Radius = n
Diameter 42981494
Circumference 135030345.79071
Area 1.4509514993554E+15

Sphere

Radius = n
Volume 4.1576042109223E+22
Surface area 5.8038059974215E+15
Circumference 135030345.79071

Square

Length = n
Perimeter 85962988
Area 461852206618009
Diagonal 30392505.872929

Cube

Length = n
Surface area 2771113239708054
Volume 9.9255489238194E+21
Space diagonal 37223065.696608

Equilateral Triangle

Length = n
Perimeter 64472241
Area 1.9998787186255E+14
Altitude 18611532.848304

Triangular Pyramid

Length = n
Surface area 1.9998787186255E+14
Volume 1.1697371585053E+21
Height 10130835.290976