20921490 (number)

20921490 is an even 8-digits composite number following 20921489 and preceding 20921491. In scientific notation, it is written as 2.0921490 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 5331744 positive integers (up to 20921490) that are relatively prime to 20921490.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921490 × 10^7
Engineering notation 2.0921490 × 10^6

Prime Factorization of 20921490

Prime Factorization 2 × 69 × 9 × 15 × 1123

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20921490
Product of the distinct prime numbers

The prime factorization of 20921490 is 2 × 69 × 9 × 15 × 1123. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 1, 30, 46, 70, 531, 1049, 6824, 53640, 56252, 906842, 569337, 782045, 5890003, 86338575, 81812026, 376098356, 128189831, 8995078166, 7644612671

Basic calculations (n = 20921490)

Multiplication

n×y
n×2 41842980
n×3 62764470
n×4 83685960
n×5 104607450

Division

n÷y
n÷2 10460745
n÷3 6973830
n÷3 5230372.5
n÷5 4184298

Exponentiation

ny
n2 437708743820100
n3 9.1575191067448E+21
n4 1.9158894441657E+29
n5 4.0083261847218E+36

Nth Root

y√n
2√n 4574.0015303889
3√n 275.54817378431
4√n 67.63136498984
5√n 29.115115830698

Divisors of 20921490

1, 2, 9, 15, 18, 30, 69, 135, 138, 270, 621, 1035, 1123, 1242, 2070, 2246, 9315, 10107, 16845, 18630, 20214, 33690, 77487, 151605, 154974, 303210, 697383, 1162305, 1394766, 2324610, 10460745, 20921490

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921489
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921490 can be divided by 32 positive divisors. The sum of these divisors (counting 20921490) is 1, the average is 0.03125.

Base conversion 20921490

Base System Value
2 Binary 1001111110011110010010010
3 Ternary 1110100220220000
4 Quaternary 1033303302102
5 Quinary 20323441430
6 Senary 2024230430
8 Octal 117636222
10 Decimal 20921490
12 Duodecimal 700b416
16 Hexadecimal 13f3c92
20 Vigesimal 6af3ea
36 Base36 cgf4i

Cryptographic Hash Functions

md5 f83f7ca64084abeb89fb29416ce963cb
sha1 0b768cc92ff964e5642151d30dd4c8bc9c92c5a9
sha256 85b7e81048009068d93f0050bfea3cdb31f32a373f8d2dea41ad73ff2ab06d66
sha512 5a5ebaa7a62261e51cd4f914a1174a856e9af1c6e2773686a3c208deecff3d9bc4973291f7aec32871c17078afe458580a5f749d0a325012a1e02d47ea046f01
ripemd-160 e86831b8fe82dd524508c7edc97b1a989a135f0e

20921490 as geometric shapes

Circle

Radius = n
Diameter 41842980
Circumference 131453598.5723
Area 1.3751025739972E+15

Sphere

Radius = n
Volume 3.8358926334477E+22
Surface area 5.500410295989E+15
Circumference 131453598.5723

Square

Length = n
Perimeter 83685960
Area 437708743820100
Diagonal 29587454.903053

Cube

Length = n
Surface area 2626252462920600
Volume 9.1575191067448E+21
Space diagonal 36237083.650044

Equilateral Triangle

Length = n
Perimeter 62764470
Area 1.8953344580339E+14
Altitude 18118541.825022

Triangular Pyramid

Length = n
Surface area 1.8953344580339E+14
Volume 1.0792239765374E+21
Height 9862484.9676844