20121390 (number)

20121390 is an even 8-digits composite number following 20121389 and preceding 20121391. In scientific notation, it is written as 2.0121390 × 10^7. The sum of its digits is 18. It has a total of 5 prime factors and 32 positive divisors. There are 5331456 positive integers (up to 20121390) that are relatively prime to 20121390.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand three hundred ninety

Notation

Scientific notation 2.0121390 × 10^7
Engineering notation 2.0121390 × 10^6

Prime Factorization of 20121390

Prime Factorization 2 × 5 × 9 × 179 × 1249

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20121390
Product of the distinct prime numbers

The prime factorization of 20121390 is 2 × 5 × 9 × 179 × 1249. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 6, 64, 16, 607, 360, 6672, 1627, 76966, 41636, 576407, 577126, 6839090, 2554987, 38040725, 34129509, 353587414, 183782345, 2712354270, 8359561967

Basic calculations (n = 20121390)

Multiplication

n×y
n×2 40242780
n×3 60364170
n×4 80485560
n×5 100606950

Division

n÷y
n÷2 10060695
n÷3 6707130
n÷3 5030347.5
n÷5 4024278

Exponentiation

ny
n2 404870335532100
n3 8.1465539206722E+21
n4 1.6391998859388E+29
n5 3.2982980192929E+36

Nth Root

y√n
2√n 4485.687238317
3√n 271.98982624865
4√n 66.975273335142
5√n 28.888939259022

Divisors of 20121390

1, 2, 5, 9, 10, 18, 45, 90, 179, 358, 895, 1249, 1611, 1790, 2498, 3222, 6245, 8055, 11241, 12490, 16110, 22482, 56205, 112410, 223571, 447142, 1117855, 2012139, 2235710, 4024278, 10060695, 20121390

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 -20121389
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 20121390 can be divided by 32 positive divisors. The sum of these divisors (counting 20121390) is 1, the average is 0.03125.

Base conversion 20121390

Base System Value
2 Binary 1001100110000011100101110
3 Ternary 1101212021100200
4 Quaternary 1030300130232
5 Quinary 20122341030
6 Senary 1555134330
8 Octal 114603456
10 Decimal 20121390
12 Duodecimal 68a43a6
16 Hexadecimal 133072e
20 Vigesimal 65f39a
36 Base36 bz9ri

Cryptographic Hash Functions

md5 09adea39c69ee60b5ccb7f0d743611a9
sha1 69089638a7d58ca69ef672798713e08bbdca6890
sha256 7fbaa4eb900d43a61d2b1c1962ef9c3680368746bfe5bb97fa163158c8440411
sha512 166c9ad4c8462036d33a41ca6a43c7378f103e40c85d39547d6a6b111af46c65c5e56cb7b41f42aa13f4800208bf0d1bf26dfbc447110dfbd681f862eea78fbc
ripemd-160 91c5c94bc856144a837341f4cc1c11500b829214

20121390 as geometric shapes

Circle

Radius = n
Diameter 40242780
Circumference 126426422.00803
Area 1.2719376717641E+15

Sphere

Radius = n
Volume 3.4124205265676E+22
Surface area 5.0877506870563E+15
Circumference 126426422.00803

Square

Length = n
Perimeter 80485560
Area 404870335532100
Diagonal 28455942.631798

Cube

Length = n
Surface area 2429222013192600
Volume 8.1465539206722E+21
Space diagonal 34851269.798908

Equilateral Triangle

Length = n
Perimeter 60364170
Area 1.7531399790476E+14
Altitude 17425634.899454

Triangular Pyramid

Length = n
Surface area 1.7531399790476E+14
Volume 9.600805867682E+20
Height 9485314.2105995