129721681 (number)

129721681 is an odd 9-digits composite number following 129721680 and preceding 129721682. In scientific notation, it is written as 1.29721681 × 10^8. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 129568752 positive integers (up to 129721681) that are relatively prime to 129721681.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29721681 × 10^8
Engineering notation 1.29721681 × 10^6

Prime Factorization of 129721681

Prime Factorization 853 × 152077

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129721681
Product of the distinct prime numbers

The prime factorization of 129721681 is 853 × 152077. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 10, 64, 94, 630, 827, 8465, 7277, 59176, 82015, 670723, 93654, 6024878, 4653292, 95719196, 60419008, 399763918, 613455727, 3413636890, 9109536593

Basic calculations (n = 129721681)

Multiplication

n×y
n×2 259443362
n×3 389165043
n×4 518886724
n×5 648608405

Division

n÷y
n÷2 64860840.5
n÷3 43240560.333333
n÷3 32430420.25
n÷5 25944336.2

Exponentiation

ny
n2 16827714521465761
n3 2.1829194151126E+24
n4 2.8317197601595E+32
n5 3.6733544740881E+40

Nth Root

y√n
2√n 11389.542615926
3√n 506.21792885284
4√n 106.72180009692
5√n 41.937497687903

Divisors of 129721681

1, 853, 152077, 129721681

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 -129721680
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 129721681 can be divided by 4 positive divisors. The sum of these divisors (counting 129721681) is 1, the average is 0.25.

Base conversion 129721681

Base System Value
2 Binary 111101110110110010101010001
3 Ternary 100001002112200201
4 Quaternary 13232312111101
5 Quinary 231202043211
6 Senary 20512215201
8 Octal 756662521
10 Decimal 129721681
12 Duodecimal 3753a501
16 Hexadecimal 7bb6551
20 Vigesimal 20af441
36 Base36 258dw1

Cryptographic Hash Functions

md5 4981aa5b274c8d2901f5a05ca9ed7942
sha1 130daa10bc6e6aa51edd2a3340838f0713b68a85
sha256 3c6064bc860ec9bd826138e5ec19646dce7c68409245acf16120a00ffeccf3d9
sha512 5d4b2a036f0498d9a8b3ac662ab6e4fb6cea9292fedeef3313789738510bd16c82677ab3b6f150add6f87407eb86ef3efed598389863879421783dda999de123
ripemd-160 89203e27b33ecb71ad230f46dc1d16a03aaf5c48

129721681 as geometric shapes

Circle

Radius = n
Diameter 259443362
Circumference 815065360.08184
Area 5.2865824317343E+16

Sphere

Radius = n
Volume 9.1437914638619E+24
Surface area 2.1146329726937E+17
Circumference 815065360.08184

Square

Length = n
Perimeter 518886724
Area 16827714521465761
Diagonal 183454160.60404

Cube

Length = n
Surface area 100966287128794566
Volume 2.1829194151126E+24
Space diagonal 224684542.33524

Equilateral Triangle

Length = n
Perimeter 389165043
Area 7.2866141316108E+15
Altitude 112342271.16762

Triangular Pyramid

Length = n
Surface area 7.2866141316108E+15
Volume 2.5725952020165E+23
Height 61151386.868012