129120215 is an odd 9-digits composite number following 129120214
and preceding 129120216 . In scientific notation, it is written as 1.29120215 × 10^8.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 88539552 positive integers (up to 129120215) that are relatively prime to 129120215.
129120215 has 8 divisors, whose sum is 177079200
The reverse of 129120215 is 512021921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
one hundred twenty-nine million one hundred twenty thousand two hundred fifteen
Scientific notation
1.29120215 × 10^8
Engineering notation
1.29120215 × 10^6
Prime Factorization
5 × 7 × 3689149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
129120215
Product of the distinct prime numbers
The prime factorization of 129120215 is 5 × 7 × 3689149.
Since it has a total of 3 prime factors.
1 , 5 , 86 , 15 , 686 , 871 , 5095 , 1627 , 12256 , 8468 , 328252 , 713972 , 7709264 , 9915958 , 38780763 , 57024668 , 74914091 , 846720897 , 1337837746 , 1368228202
n×2
258240430
n×3
387360645
n×4
516480860
n×5
645601075
n÷2
64560107.5
n÷3
43040071.666667
n÷3
32280053.75
n÷5
25824043
n2
16672029921646225
n3
2.1526960879694E+24
n4
2.7795658170827E+32
n5
3.5889813590837E+40
2 √n
11363.107629518
3 √n
505.43434187364
4 √n
106.59787816611
5 √n
41.898535980597
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129120214
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129120215 can be divided by 8 positive divisors.
The sum of these divisors (counting 129120215) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101100100011011111010111
3
Ternary
22222221222122012
4
Quaternary
13230203133113
5
Quinary
231023321330
6
Senary
20451254435
8
Octal
754433727
10
Decimal
129120215
12
Duodecimal
372aa41b
16
Hexadecimal
7b237d7
20
Vigesimal
20700af
36
Base36
24vhsn
md5
6dda65bca4480388830b67470859d511
sha1
0c5d2ff07798d6149a8349f9d622c60ec3754172
sha256
4c1e72abc35bac0508f0972ad68d24d0dc8a49228013452789cb7372e29ceab1
sha512
d4361d15ffbfb471ba5494b239046eaa365baebab06ceb0fa24292e8b058b3859bc587de14ecfb6278db0b96ceab0c1dde288ba00ed018e08b0bacf50b2cb2a6
ripemd-160
d7b308a9cc1c129631ec2ad5ef9ef1038e66ed02
Diameter
258240430
Circumference
811286237.74787
Area
5.2376726722273E+16
Volume
9.0171922871682E+24
Surface area
2.0950690688909E+17
Circumference
811286237.74787
Perimeter
516480860
Area
16672029921646225
Diagonal
182603559.22953
Surface area
100032179529877350
Volume
2.1526960879694E+24
Space diagonal
223642772.66422
Perimeter
387360645
Area
7.2192007224E+15
Altitude
111821386.33211
Surface area
7.2192007224E+15
Volume
2.5369766693949E+23
Height
60867853.07651