129121380 is an even 9-digits composite number following 129121379
and preceding 129121381 . In scientific notation, it is written as 1.29121380 × 10^8.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 34432320 positive integers (up to 129121380) that are relatively prime to 129121380.
129121380 has 12 divisors, whose sum is 230984124
The reverse of 129121380 is 083121921
Previous prime number is 45
Is Prime? no Number parity even Number length 9 Sum of Digits 27 Digital Root 9
Name
one hundred twenty-nine million one hundred twenty-one thousand three hundred eighty
Scientific notation
1.29121380 × 10^8
Engineering notation
1.29121380 × 10^6
Prime Factorization
2 × 2 × 45 × 717341
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
64560690 Product of the distinct prime numbers
The prime factorization of 129121380 is 2 × 2 × 45 × 717341.
Since it has a total of 4 prime factors.
3 , 8 , 67 , 91 , 329 , 418 , 4262 , 6672 , 18164 , 48093 , 839770 , 208066 , 7617143 , 1128196 , 92876126 , 41533901 , 169797136 , 271790666 , 3204130509 , 9749643484
n×2
258242760
n×3
387364140
n×4
516485520
n×5
645606900
n÷2
64560690
n÷3
43040460
n÷3
32280345
n÷5
25824276
n2
16672330773104400
n3
2.1527543572397E+24
n4
2.779666134078E+32
n5
3.5891432717142E+40
2 √n11363.158891787
3 √n505.43586197963
4 √n106.59811861279
5 √n41.898611587067
1 , 2 , 4 , 45 , 90 , 180 , 717341 , 1434682 , 2869364 , 32280345 , 64560690 , 129121380
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-129121379 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129121380 can be divided by 12 positive divisors.
The sum of these divisors (counting 129121380) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101100100011110001100100
3
Ternary
22222222001020100
4
Quaternary
13230203301210
5
Quinary
231023341010
6
Senary
20451304100
8
Octal
754436144
10
Decimal
129121380
12
Duodecimal
372ab030
16
Hexadecimal
7b23c64
20
Vigesimal
2070390
36
Base36
24vip0
md5
5b6e320a5bbd3b1f2574ced48e5b52bf
sha1
4f78d9346f6fc4698c1e73ae43ffb1a35564ac53
sha256
75238ae4df61439d2897640853a6632c0c7be3fd723946048673c2feb74c55f4
sha512
096f2b67407f5bba05fc5682e889b0bf6df3c65f00fe941e2732d0d1fb09f9d2f5dfd0fa29b45b4fe450950485fdc9ab4bd692432edca0c3387804e64ad5e87f
ripemd-160
0e9e21bda4cb33e2e1b455bcee84455a90237c96
Diameter
258242760
Circumference
811293557.65875
Area
5.2377671875004E+16
Volume
9.0174363649169E+24
Surface area
2.0951068750002E+17
Circumference
811293557.65875
Perimeter
516485520
Area
16672330773104400
Diagonal
182605206.78833
Surface area
100033984638626400
Volume
2.1527543572397E+24
Space diagonal
223644790.50341
Perimeter
387364140
Area
7.2193309949027E+15
Altitude
111822395.2517
Surface area
7.2193309949027E+15
Volume
2.5370453403885E+23
Height
60868402.262777