129121386 is an even 9-digits composite number following 129121385
and preceding 129121387 . In scientific notation, it is written as 1.29121386 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 41652000 positive integers (up to 129121386) that are relatively prime to 129121386.
129121386 has 16 divisors, whose sum is 266573568
The reverse of 129121386 is 683121921
Previous prime number is 31
Is Prime? no Number parity even Number length 9 Sum of Digits 33 Digital Root 6
Name
one hundred twenty-nine million one hundred twenty-one thousand three hundred eighty-six
Scientific notation
1.29121386 × 10^8
Engineering notation
1.29121386 × 10^6
Prime Factorization
2 × 3 × 31 × 694201
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
129121386 Product of the distinct prime numbers
The prime factorization of 129121386 is 2 × 3 × 31 × 694201.
Since it has a total of 4 prime factors.
8 , 5 , 12 , 32 , 431 , 948 , 4004 , 1821 , 91086 , 36261 , 374114 , 408039 , 8092811 , 5963554 , 20386642 , 32692182 , 264667443 , 401290898 , 8853745705 , 9177521606
n×2
258242772
n×3
387364158
n×4
516485544
n×5
645606930
n÷2
64560693
n÷3
43040462
n÷3
32280346.5
n÷5
25824277.2
n2
16672332322560996
n3
2.1527546573417E+24
n4
2.7796666507391E+32
n5
3.5891441056141E+40
2 √n11363.159155798
3 √n505.43586980848
4 √n106.59811985114
5 √n41.898611976455
1 , 2 , 3 , 6 , 31 , 62 , 93 , 186 , 694201 , 1388402 , 2082603 , 4165206 , 21520231 , 43040462 , 64560693 , 129121386
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-129121385 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129121386 can be divided by 16 positive divisors.
The sum of these divisors (counting 129121386) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101100100011110001101010
3
Ternary
22222222001020120
4
Quaternary
13230203301222
5
Quinary
231023341021
6
Senary
20451304110
8
Octal
754436152
10
Decimal
129121386
12
Duodecimal
372ab036
16
Hexadecimal
7b23c6a
20
Vigesimal
2070396
36
Base36
24vip6
md5
aa53747888729f5604b41deb0515fa1e
sha1
8f2d14d49946433b0fb17e742cf28caaecb46b9a
sha256
5b68e84e5c8a6f89c55fb8ce4a8fc5d7ff2e21917a78c78c320e42a2b03848a5
sha512
e558700e530665135d24f18479f244a0bab1e030107fbd305a7287ede1f4146763da5d9aba25b43d9d0bd16b37310217b112b50afcc33fd226bb3a8d59494427
ripemd-160
88c9b885aacfac1cb48fd639db998941c23a70da
Diameter
258242772
Circumference
811293595.35786
Area
5.2377676742765E+16
Volume
9.0174376219811E+24
Surface area
2.0951070697106E+17
Circumference
811293595.35786
Perimeter
516485544
Area
16672332322560996
Diagonal
182605215.27361
Surface area
100033993935365976
Volume
2.1527546573417E+24
Space diagonal
223644800.89571
Perimeter
387364158
Area
7.2193316658371E+15
Altitude
111822400.44786
Surface area
7.2193316658371E+15
Volume
2.537045694062E+23
Height
60868405.091204