129721640 (number)

129721640 is an even 9-digits composite number following 129721639 and preceding 129721641. In scientific notation, it is written as 1.29721640 × 10^8. The sum of its digits is 32. It has a total of 5 prime factors and 16 positive divisors. There are 50098944 positive integers (up to 129721640) that are relatively prime to 129721640.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29721640 × 10^8
Engineering notation 1.29721640 × 10^6

Prime Factorization of 129721640

Prime Factorization 2 × 2 × 2 × 145 × 111829

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 32430410
Product of the distinct prime numbers

The prime factorization of 129721640 is 2 × 2 × 2 × 145 × 111829. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 5, 9, 32, 871, 93, 5883, 6757, 85281, 84069, 501167, 382948, 4366615, 1541399, 27382438, 86366032, 256754484, 609667822, 3287967421, 456370363

Basic calculations (n = 129721640)

Multiplication

n×y
n×2 259443280
n×3 389164920
n×4 518886560
n×5 648608200

Division

n÷y
n÷2 64860820
n÷3 43240546.666667
n÷3 32430410
n÷5 25944328

Exponentiation

ny
n2 16827703884289600
n3 2.1829173453044E+24
n4 2.8317161801734E+32
n5 3.6733486690662E+40

Nth Root

y√n
2√n 11389.540816029
3√n 506.21787552087
4√n 106.72179166426
5√n 41.937495036939

Divisors of 129721640

1, 2, 4, 8, 145, 290, 580, 1160, 111829, 223658, 447316, 894632, 16215205, 32430410, 64860820, 129721640

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 -129721639
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 129721640 can be divided by 16 positive divisors. The sum of these divisors (counting 129721640) is 1, the average is 0.0625.

Base conversion 129721640

Base System Value
2 Binary 111101110110110010100101000
3 Ternary 100001002112122012
4 Quaternary 13232312110220
5 Quinary 231202043030
6 Senary 20512215052
8 Octal 756662450
10 Decimal 129721640
12 Duodecimal 3753a488
16 Hexadecimal 7bb6528
20 Vigesimal 20af420
36 Base36 258duw

Cryptographic Hash Functions

md5 2befd47462a2700aee36265134442797
sha1 d3012351117ae078c86658e0441141cd59d4e690
sha256 81356212466da5dd7c204963afd9f7fdba774aae830c55650e5145f9cfc3b2dc
sha512 b9d3be56a1fbc99f8d4b1177cc58b3f00068b1d3cccb2f7dc260f480a364b1434e6aac437415ab3685ddc59613153c61bfa400c7a6552bc991d12c5ae540dcd0
ripemd-160 8f64ed75783e3dad9869ebf959ab73f31aac1d45

129721640 as geometric shapes

Circle

Radius = n
Diameter 259443280
Circumference 815065102.47124
Area 5.2865790899669E+16

Sphere

Radius = n
Volume 9.1437827938695E+24
Surface area 2.1146316359867E+17
Circumference 815065102.47124

Square

Length = n
Perimeter 518886560
Area 16827703884289600
Diagonal 183454102.62128

Cube

Length = n
Surface area 100966223305737600
Volume 2.1829173453044E+24
Space diagonal 224684471.32116

Equilateral Triangle

Length = n
Perimeter 389164920
Area 7.2866095255784E+15
Altitude 112342235.66058

Triangular Pyramid

Length = n
Surface area 7.2866095255784E+15
Volume 2.5725927627241E+23
Height 61151367.540427