20121389 (number)

20121389 is an odd 8-digits composite number following 20121388 and preceding 20121390. In scientific notation, it is written as 2.0121389 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 18332160 positive integers (up to 20121389) that are relatively prime to 20121389.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand three hundred eighty-nine

Notation

Scientific notation 2.0121389 × 10^7
Engineering notation 2.0121389 × 10^6

Prime Factorization of 20121389

Prime Factorization 23 × 29 × 97 × 311

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121389
Product of the distinct prime numbers

The prime factorization of 20121389 is 23 × 29 × 97 × 311. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 25, 53, 83, 696, 3171, 6682, 40425, 79785, 847657, 956911, 8668560, 1231199, 1118312, 27813259, 827891369, 21670466, 1491808467, 2388712088

Basic calculations (n = 20121389)

Multiplication

n×y
n×2 40242778
n×3 60364167
n×4 80485556
n×5 100606945

Division

n÷y
n÷2 10060694.5
n÷3 6707129.6666667
n÷3 5030347.25
n÷5 4024277.8

Exponentiation

ny
n2 404870295289321
n3 8.1465527060613E+21
n4 1.6391995600766E+29
n5 3.2982971996931E+36

Nth Root

y√n
2√n 4485.6871268514
3√n 271.98982174284
4√n 66.975272503002
5√n 28.888938971875

Divisors of 20121389

1, 23, 29, 97, 311, 667, 2231, 2813, 7153, 9019, 30167, 64699, 207437, 693841, 874843, 20121389

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121388
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121389 can be divided by 16 positive divisors. The sum of these divisors (counting 20121389) is 1, the average is 0.0625.

Base conversion 20121389

Base System Value
2 Binary 1001100110000011100101101
3 Ternary 1101212021100122
4 Quaternary 1030300130231
5 Quinary 20122341024
6 Senary 1555134325
8 Octal 114603455
10 Decimal 20121389
12 Duodecimal 68a43a5
16 Hexadecimal 133072d
20 Vigesimal 65f399
36 Base36 bz9rh

Cryptographic Hash Functions

md5 538ad9cac657e3b89360511161ff166a
sha1 e339bb0a63419874c3e62d861375733dc7eb87eb
sha256 c52d6ab9ce3804fda2dca6e44533d6038fe82aac1a0cedd6edf2a5bc40ffeba4
sha512 0cb81e12edd6c552a8fd086e1a6d749d73af42853f94f95600d0957d133add1193bcd78a43d5f9596e323c9e4cb016093cd40b7c1a618e05706aade50d58ed2e
ripemd-160 0644621f4d84033079d6b604687e8d7b5b3252a5

20121389 as geometric shapes

Circle

Radius = n
Diameter 40242778
Circumference 126426415.72484
Area 1.2719375453377E+15

Sphere

Radius = n
Volume 3.4124200177926E+22
Surface area 5.0877501813506E+15
Circumference 126426415.72484

Square

Length = n
Perimeter 80485556
Area 404870295289321
Diagonal 28455941.217585

Cube

Length = n
Surface area 2429221771735926
Volume 8.1465527060613E+21
Space diagonal 34851268.066858

Equilateral Triangle

Length = n
Perimeter 60364167
Area 1.7531398047913E+14
Altitude 17425634.033429

Triangular Pyramid

Length = n
Surface area 1.7531398047913E+14
Volume 9.6008044362493E+20
Height 9485313.7391949