129031721 is an odd 9-digits composite number following 129031720
and preceding 129031722 . In scientific notation, it is written as 1.29031721 × 10^8.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 102090960 positive integers (up to 129031721) that are relatively prime to 129031721.
129031721 has 4 divisors, whose sum is 130449744
The reverse of 129031721 is 127130921
Previous prime number is 91
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 26
Digital Root 8
Name
one hundred twenty-nine million thirty-one thousand seven hundred twenty-one
Scientific notation
1.29031721 × 10^8
Engineering notation
1.29031721 × 10^6
Prime Factorization
91 × 1417931
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129031721
Product of the distinct prime numbers
The prime factorization of 129031721 is 91 × 1417931.
Since it has a total of 2 prime factors.
8 , 5 , 28 , 64 , 926 , 741 , 7447 , 4367 , 52310 , 95767 , 265856 , 225505 , 6108127 , 7551356 , 27839802 , 90826103 , 530853653 , 843525494 , 2056013269 , 2968663732
n×2
258063442
n×3
387095163
n×4
516126884
n×5
645158605
n÷2
64515860.5
n÷3
43010573.666667
n÷3
32257930.25
n÷5
25806344.2
n2
16649185024221841
n3
2.1482729969228E+24
n4
2.7719536197077E+32
n5
3.5766994608307E+40
2 √n
11359.213044925
3 √n
505.31884710312
4 √n
106.57960895465
5 √n
41.892791278382
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
-129031720
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 129031721 can be divided by 4 positive divisors.
The sum of these divisors (counting 129031721) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100001101111000101001
3
Ternary
22222210111020122
4
Quaternary
13230031320221
5
Quinary
231013003341
6
Senary
20445333025
8
Octal
754157051
10
Decimal
129031721
12
Duodecimal
37267175
16
Hexadecimal
7b0de29
20
Vigesimal
2068j61
36
Base36
24tlih
md5
d684f53f54e0fafb13ee26cf4f233682
sha1
855f61b6a19497910727000c485e4c346c823eab
sha256
efea9c0f335e7b2e244f41e7a510ac2bc38169748f36a56140237c18b9be79aa
sha512
8a4fb3f9986b4f9997d85ca54755bf0a70fef393153ab84984d8d57eacdf363f1d2d0f4e0e98809781944a96e66b8f38e6cb61613689aded2e72b9ae223df22e
ripemd-160
3dc7f7190f4e6ea9afbab1b9c2360cb90c1b9b1a
Diameter
258063442
Circumference
810730213.5473
Area
5.2304957360353E+16
Volume
8.9986648867172E+24
Surface area
2.0921982944141E+17
Circumference
810730213.5473
Perimeter
516126884
Area
16649185024221841
Diagonal
182478409.81454
Surface area
99895110145331046
Volume
2.1482729969228E+24
Space diagonal
223489496.56005
Perimeter
387095163
Area
7.2093085916418E+15
Altitude
111744748.28003
Surface area
7.2093085916418E+15
Volume
2.5317640066067E+23
Height
60826136.604847