129126981 is an odd 9-digits composite number following 129126980
and preceding 129126982 . In scientific notation, it is written as 1.29126981 × 10^8.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 86084652 positive integers (up to 129126981) that are relatively prime to 129126981.
129126981 has 4 divisors, whose sum is 172169312
The reverse of 129126981 is 189621921
Previous prime number is 3
Is Prime? no Number parity odd Number length 9 Sum of Digits 39 Digital Root 3
Name
one hundred twenty-nine million one hundred twenty-six thousand nine hundred eighty-one
Scientific notation
1.29126981 × 10^8
Engineering notation
1.29126981 × 10^6
Prime Factorization
3 × 43042327
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
129126981 Product of the distinct prime numbers
The prime factorization of 129126981 is 3 × 43042327.
Since it has a total of 2 prime factors.
5 , 9 , 74 , 97 , 525 , 422 , 9738 , 9167 , 24091 , 59245 , 449162 , 633645 , 1443832 , 930115 , 86545124 , 3222021 , 787252092 , 182840049 , 8755197619 , 8583191697
n×2
258253962
n×3
387380943
n×4
516507924
n×5
645634905
n÷2
64563490.5
n÷3
43042327
n÷3
32281745.25
n÷5
25825396.2
n2
16673777222174361
n3
2.1530345145659E+24
n4
2.780148468547E+32
n5
3.5899217847525E+40
2 √n11363.40534347
3 √n505.44317010405
4 √n106.59927459167
5 √n41.898975074588
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
-129126980 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 129126981 can be divided by 4 positive divisors.
The sum of these divisors (counting 129126981) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100100101001001000101
3
Ternary
22222222022220210
4
Quaternary
13230211021011
5
Quinary
231024030411
6
Senary
20451350033
8
Octal
754451105
10
Decimal
129126981
12
Duodecimal
372b2319
16
Hexadecimal
7b25245
20
Vigesimal
2070h91
36
Base36
24vn0l
md5
32d64246f487af85caa3caeec75e129a
sha1
c7a3815cdadd013255498407e7e33cfa75e2ee6f
sha256
84a12cb95fed63bb7778da3c8b5b9652fe08e832e2dbd35896befc20c2a8c294
sha512
f8a9eb1046ddb11c97b37cf1c07e3c15d097520d463dfbf9ed1e1a846ba9434e9e729e2ba226aae1ae96e195f3c17971074e4594373b2670f2762b336ccdcf88
ripemd-160
24c6cf6e6bd0a7fbab88926e65be76256ecc490f
Diameter
258253962
Circumference
811328749.77966
Area
5.2382216028776E+16
Volume
9.0186098851808E+24
Surface area
2.095288641151E+17
Circumference
811328749.77966
Perimeter
516507924
Area
16673777222174361
Diagonal
182613127.79849
Surface area
100042663333046166
Volume
2.1530345145659E+24
Space diagonal
223654491.71998
Perimeter
387380943
Area
7.2199573257227E+15
Altitude
111827245.85999
Surface area
7.2199573257227E+15
Volume
2.5373755089638E+23
Height
60871042.599498