129638891 is an odd 9-digits composite number following 129638890
and preceding 129638892 . In scientific notation, it is written as 1.29638891 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 129616032 positive integers (up to 129638891) that are relatively prime to 129638891.
129638891 has 4 divisors, whose sum is 129661752
The reverse of 129638891 is 198836921
Previous prime number is 10427
Is Prime? no Number parity odd Number length 9 Sum of Digits 47 Digital Root 2
Name
one hundred twenty-nine million six hundred thirty-eight thousand eight hundred ninety-one
Scientific notation
1.29638891 × 10^8
Engineering notation
1.29638891 × 10^6
Prime Factorization
10427 × 12433
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
129638891 Product of the distinct prime numbers
The prime factorization of 129638891 is 10427 × 12433.
Since it has a total of 2 prime factors.
9 , 5 , 88 , 15 , 82 , 141 , 7197 , 5377 , 74600 , 29079 , 983515 , 255467 , 7494722 , 472116 , 9925066 , 4986589 , 929310610 , 466147739 , 5464912735 , 724063075
n×2
259277782
n×3
388916673
n×4
518555564
n×5
648194455
n÷2
64819445.5
n÷3
43212963.666667
n÷3
32409722.75
n÷5
25927778.2
n2
16806242059709881
n3
2.1787425824983E+24
n4
2.8244977216956E+32
n5
3.6616475227265E+40
2 √n11385.907561543
3 √n506.11021439588
4 √n106.70476822309
5 √n41.932143313681
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
-129638890 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 129638891 can be divided by 4 positive divisors.
The sum of these divisors (counting 129638891) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101110100010000111101011
3
Ternary
100000221100010102
4
Quaternary
13232202013223
5
Quinary
231141421031
6
Senary
20510340015
8
Octal
756420753
10
Decimal
129638891
12
Duodecimal
374ba60b
16
Hexadecimal
7ba21eb
20
Vigesimal
20a4h4b
36
Base36
256m0b
md5
7f8f2b447a97fe47f7a346a34f2a5ae6
sha1
6085ad80c64a07910d0665d40fdf95080b9640cf
sha256
7a45a9c11ec2f72c7efd37a1ce5efb7cc343323dafd97266cb184bdf25c7a2dc
sha512
d60b6fad366bf38a03d30169625c2aed4b06fe87bf1f3665b98ff90212d31ebf1b52b2c1f330bb001ed4ad9b133d7c60c90b83ceee38cd2b109594035ccc2298
ripemd-160
fa5d83e8ddfc99e855a3a348288b5c8e1455f721
Diameter
259277782
Circumference
814545175.17026
Area
5.2798366589236E+16
Volume
9.1262955883201E+24
Surface area
2.1119346635695E+17
Circumference
814545175.17026
Perimeter
518555564
Area
16806242059709881
Diagonal
183337077.86321
Surface area
100837452358259286
Volume
2.1787425824983E+24
Space diagonal
224541145.84888
Perimeter
388916673
Area
7.2773162829296E+15
Altitude
112270572.92444
Surface area
7.2773162829296E+15
Volume
2.5676727575741E+23
Height
61112359.287736