20129638 (number)

20129638 is an even 8-digits composite number following 20129637 and preceding 20129639. In scientific notation, it is written as 2.0129638 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 10064818 positive integers (up to 20129638) that are relatively prime to 20129638.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-nine thousand six hundred thirty-eight

Notation

Scientific notation 2.0129638 × 10^7
Engineering notation 2.0129638 × 10^6

Prime Factorization of 20129638

Prime Factorization 2 × 10064819

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20129638
Product of the distinct prime numbers

The prime factorization of 20129638 is 2 × 10064819. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 10, 48, 68, 219, 276, 8021, 8931, 94098, 87367, 349350, 994184, 1558847, 2150967, 9596756, 78173442, 440590097, 831041335, 6828274814, 2714162289

Basic calculations (n = 20129638)

Multiplication

n×y
n×2 40259276
n×3 60388914
n×4 80518552
n×5 100648190

Division

n÷y
n÷2 10064819
n÷3 6709879.3333333
n÷3 5032409.5
n÷5 4025927.6

Exponentiation

ny
n2 405202326011044
n3 8.1565761393603E+21
n4 1.6418892500476E+29
n5 3.305063623955E+36

Nth Root

y√n
2√n 4486.6065127221
3√n 272.0269851399
4√n 66.982135773071
5√n 28.891307255584

Divisors of 20129638

1, 2, 10064819, 20129638

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20129637
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20129638 can be divided by 4 positive divisors. The sum of these divisors (counting 20129638) is 1, the average is 0.25.

Base conversion 20129638

Base System Value
2 Binary 1001100110010011101100110
3 Ternary 1101212200200011
4 Quaternary 1030302131212
5 Quinary 20123122023
6 Senary 1555240434
8 Octal 114623546
10 Decimal 20129638
12 Duodecimal 68a911a
16 Hexadecimal 1332766
20 Vigesimal 65g41i
36 Base36 bzg4m

Cryptographic Hash Functions

md5 2635d6b129ab45a15daa2d5c892597c9
sha1 e8af3c329d8e04ebb4026c167f987b1ae5f8954e
sha256 fbbf39a2f398558453b3e58128f6759f77d914f137a3fc73af3cd990270164aa
sha512 10e5c64860916685c7f5d416062b55fa4ad2ffed499363b45a282f86dc67c807220ac7f1b732a75a80372ce950b78023c11a50d7bf4442d37799dabbf5a934e2
ripemd-160 2b82ddb2f502f0e90040791a4a131cead127835f

20129638 as geometric shapes

Circle

Radius = n
Diameter 40259276
Circumference 126478245.72044
Area 1.2729806506138E+15

Sphere

Radius = n
Volume 3.4166186237147E+22
Surface area 5.0919226024552E+15
Circumference 126478245.72044

Square

Length = n
Perimeter 80518552
Area 405202326011044
Diagonal 28467607.065261

Cube

Length = n
Surface area 2431213956066264
Volume 8.1565761393603E+21
Space diagonal 34865555.753969

Equilateral Triangle

Length = n
Perimeter 60388914
Area 1.7545775399905E+14
Altitude 17432777.876985

Triangular Pyramid

Length = n
Surface area 1.7545775399905E+14
Volume 9.6126171656768E+20
Height 9489202.3550869