20139945 (number)

20139945 is an odd 8-digits composite number following 20139944 and preceding 20139946. In scientific notation, it is written as 2.0139945 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 9048000 positive integers (up to 20139945) that are relatively prime to 20139945.

Interesting facts

Basic properties

Name

Name twenty million one hundred thirty-nine thousand nine hundred forty-five

Notation

Scientific notation 2.0139945 × 10^7
Engineering notation 2.0139945 × 10^6

Prime Factorization of 20139945

Prime Factorization 21 × 5 × 59 × 3251

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20139945
Product of the distinct prime numbers

The prime factorization of 20139945 is 21 × 5 × 59 × 3251. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 68, 93, 545, 361, 4782, 8964, 56152, 30170, 593174, 462660, 2731105, 9096502, 31626009, 52199988, 780032594, 13918979, 6614750252, 3929173855

Basic calculations (n = 20139945)

Multiplication

n×y
n×2 40279890
n×3 60419835
n×4 80559780
n×5 100699725

Division

n÷y
n÷2 10069972.5
n÷3 6713315
n÷3 5034986.25
n÷5 4027989

Exponentiation

ny
n2 405617384603025
n3 8.1691118169488E+21
n4 1.645254626922E+29
n5 3.3135337697204E+36

Nth Root

y√n
2√n 4487.7550066821
3√n 272.07340597354
4√n 66.990708360802
5√n 28.894265299172

Divisors of 20139945

1, 5, 21, 59, 105, 295, 1239, 3251, 6195, 16255, 68271, 191809, 341355, 959045, 4027989, 20139945

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 -20139944
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 20139945 can be divided by 16 positive divisors. The sum of these divisors (counting 20139945) is 1, the average is 0.0625.

Base conversion 20139945

Base System Value
2 Binary 1001100110100111110101001
3 Ternary 1101220012210220
4 Quaternary 1030310332221
5 Quinary 20123434240
6 Senary 1555400253
8 Octal 114647651
10 Decimal 20139945
12 Duodecimal 68b3089
16 Hexadecimal 1334fa9
20 Vigesimal 65h9h5
36 Base36 bzo2x

Cryptographic Hash Functions

md5 c4c987128de69c82ddf07966961bee44
sha1 4ffa9cd921ab3cc57cfb2eb5191e6782142c2e9b
sha256 e7cd6039aa1dc97ae27653ee091193388ad23346a1a680c7b64230817b74782b
sha512 7caab9fbd17b91c542220d1a90cae90b70e647390bef7a37531629a604cf7b5b9e5b08ff9e059dadd4e0655672c2267d9179deb5b252df789bd7fce6c8e60d65
ripemd-160 287377dea67c961093354bb7fd57861819005183

20139945 as geometric shapes

Circle

Radius = n
Diameter 40279890
Circumference 126543006.5114
Area 1.2742845956372E+15

Sphere

Radius = n
Volume 3.421869556064E+22
Surface area 5.0971383825487E+15
Circumference 126543006.5114

Square

Length = n
Perimeter 80559780
Area 405617384603025
Diagonal 28482183.364448

Cube

Length = n
Surface area 2433704307618150
Volume 8.1691118169488E+21
Space diagonal 34883408.001643

Equilateral Triangle

Length = n
Perimeter 60419835
Area 1.7563747964141E+14
Altitude 17441704.000821

Triangular Pyramid

Length = n
Surface area 1.7563747964141E+14
Volume 9.6273906033927E+20
Height 9494061.1214827