21491500 (number)

21491500 is an even 8-digits composite number following 21491499 and preceding 21491501. In scientific notation, it is written as 2.1491500 × 10^7. The sum of its digits is 22. It has a total of 7 prime factors and 48 positive divisors. There are 8424000 positive integers (up to 21491500) that are relatively prime to 21491500.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand five hundred

Notation

Scientific notation 2.1491500 × 10^7
Engineering notation 2.1491500 × 10^6

Prime Factorization of 21491500

Prime Factorization 2 × 2 × 5 × 5 × 5 × 53 × 811

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 429830
Product of the distinct prime numbers

The prime factorization of 21491500 is 2 × 2 × 5 × 5 × 5 × 53 × 811. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 10, 95, 34, 292, 710, 8959, 7036, 68837, 57329, 502673, 86357, 4540300, 479962, 92975919, 52261073, 462477067, 807164109, 6850626440, 2994956955

Basic calculations (n = 21491500)

Multiplication

n×y
n×2 42983000
n×3 64474500
n×4 85966000
n×5 107457500

Division

n÷y
n÷2 10745750
n÷3 7163833.3333333
n÷3 5372875
n÷5 4298300

Exponentiation

ny
n2 461884572250000
n3 9.9265922845109E+21
n4 2.1333735808257E+29
n5 4.5849398312315E+36

Nth Root

y√n
2√n 4635.8925785656
3√n 278.02823928583
4√n 68.087389277058
5√n 29.272063974056

Divisors of 21491500

1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 125, 212, 250, 265, 500, 530, 811, 1060, 1325, 1622, 2650, 3244, 4055, 5300, 6625, 8110, 13250, 16220, 20275, 26500, 40550, 42983, 81100, 85966, 101375, 171932, 202750, 214915, 405500, 429830, 859660, 1074575, 2149150, 4298300, 5372875, 10745750, 21491500

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491499
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491500 can be divided by 48 positive divisors. The sum of these divisors (counting 21491500) is 1, the average is 0.020833333333333.

Base conversion 21491500

Base System Value
2 Binary 1010001111110111100101100
3 Ternary 1111102212210111
4 Quaternary 1101332330230
5 Quinary 21000212000
6 Senary 2044345404
8 Octal 121767454
10 Decimal 21491500
12 Duodecimal 7245264
16 Hexadecimal 147ef2c
20 Vigesimal 6e68f0
36 Base36 csmy4

Cryptographic Hash Functions

md5 5d2252a456c1e88211b5d606e0d6bbf9
sha1 792647998eac07c215b4cf25706850c8aeed5d78
sha256 824b4d4255cb5510e3168e4f015aca1479364aaa92c7663b55a534b13e1cac65
sha512 6119ead80331e4f56a7cf6c21c7ca2b6aec8f6d140a3d6496ae14c05adae2977f461308f3515fe0c75e419071d0551a7c2845a0ef482b866ba455206e604163a
ripemd-160 368f5cd03ce80e7c4af92c6c798659bea4a706ac

21491500 as geometric shapes

Circle

Radius = n
Diameter 42983000
Circumference 135035077.02925
Area 1.4510531789871E+15

Sphere

Radius = n
Volume 4.1580412528267E+22
Surface area 5.8042127159483E+15
Circumference 135035077.02925

Square

Length = n
Perimeter 85966000
Area 461884572250000
Diagonal 30393570.775741

Cube

Length = n
Surface area 2771307433500000
Volume 9.9265922845109E+21
Space diagonal 37224369.930867

Equilateral Triangle

Length = n
Perimeter 64474500
Area 2.000018865923E+14
Altitude 18612184.965433

Triangular Pyramid

Length = n
Surface area 2.000018865923E+14
Volume 1.169860119742E+21
Height 10131190.25858