129721145 (number)

129721145 is an odd 9-digits composite number following 129721144 and preceding 129721146. In scientific notation, it is written as 1.29721145 × 10^8. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 103776912 positive integers (up to 129721145) that are relatively prime to 129721145.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29721145 × 10^8
Engineering notation 1.29721145 × 10^6

Prime Factorization of 129721145

Prime Factorization 5 × 25944229

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129721145
Product of the distinct prime numbers

The prime factorization of 129721145 is 5 × 25944229. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 3, 94, 23, 219, 936, 724, 5186, 27772, 97729, 634089, 864474, 2164500, 6083212, 2803381, 8521009, 428825787, 439860610, 3999484268, 4940428948

Basic calculations (n = 129721145)

Multiplication

n×y
n×2 259442290
n×3 389163435
n×4 518884580
n×5 648605725

Division

n÷y
n÷2 64860572.5
n÷3 43240381.666667
n÷3 32430286.25
n÷5 25944229

Exponentiation

ny
n2 16827575460111025
n3 2.1828923562595E+24
n4 2.8316729586573E+32
n5 3.6732785846256E+40

Nth Root

y√n
2√n 11389.519085545
3√n 506.21723163404
4√n 106.72168985518
5√n 41.937463031343

Divisors of 129721145

1, 5, 25944229, 129721145

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 -129721144
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 129721145 can be divided by 4 positive divisors. The sum of these divisors (counting 129721145) is 1, the average is 0.25.

Base conversion 129721145

Base System Value
2 Binary 111101110110110001100111001
3 Ternary 100001002111221212
4 Quaternary 13232312030321
5 Quinary 231202034040
6 Senary 20512212505
8 Octal 756661471
10 Decimal 129721145
12 Duodecimal 3753a135
16 Hexadecimal 7bb6339
20 Vigesimal 20af2h5
36 Base36 258dh5

Cryptographic Hash Functions

md5 b68471bcbba5016620fe114996991344
sha1 63e893456908e8b1f61d0037f98195f2f2ef71a0
sha256 49b5f7a91751930ab6c3b23d05ae19cd45c48e27767e10e86b3c5a6913f03d97
sha512 a4c1a0c94a98e6955deb648412cb6aa8c23dbb7eac64e2333de9d313bea9304428240a600d0a581922607a9dd603b1d29ba8d8d76a306ab4f10fc361199c4ba5
ripemd-160 070391acb1b065617d8c90844405a64fe6599b6e

129721145 as geometric shapes

Circle

Radius = n
Diameter 259442290
Circumference 815061992.29451
Area 5.2865387443213E+16

Sphere

Radius = n
Volume 9.1436781200029E+24
Surface area 2.1146154977285E+17
Circumference 815061992.29451

Square

Length = n
Perimeter 518884580
Area 16827575460111025
Diagonal 183453402.58557

Cube

Length = n
Surface area 100965452760666150
Volume 2.1828923562595E+24
Space diagonal 224683613.95601

Equilateral Triangle

Length = n
Perimeter 389163435
Area 7.2865539162779E+15
Altitude 112341806.978

Triangular Pyramid

Length = n
Surface area 7.2865539162779E+15
Volume 2.5725633128523E+23
Height 61151134.195189