129387512 is an even 9-digits composite number following 129387511
and preceding 129387513 . In scientific notation, it is written as 1.29387512 × 10^8.
The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors.
There are 61880896 positive integers (up to 129387512) that are relatively prime to 129387512.
129387512 has 16 divisors, whose sum is 253149840
The reverse of 129387512 is 215783921
Previous prime number is 23
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-nine million three hundred eighty-seven thousand five hundred twelve
Scientific notation
1.29387512 × 10^8
Engineering notation
1.29387512 × 10^6
Prime Factorization
2 × 2 × 2 × 23 × 703193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32346878
Product of the distinct prime numbers
The prime factorization of 129387512 is 2 × 2 × 2 × 23 × 703193.
Since it has a total of 5 prime factors.
10 , 2 , 100 , 98 , 170 , 799 , 262 , 393 , 64146 , 62472 , 546356 , 450028 , 4316684 , 6806599 , 84814149 , 24842116 , 928757810 , 947267776 , 5824727860 , 4577346338
n×2
258775024
n×3
388162536
n×4
517550048
n×5
646937560
n÷2
64693756
n÷3
43129170.666667
n÷3
32346878
n÷5
25877502.4
n2
16741128261550144
n3
2.1660929338349E+24
n4
2.8026537546967E+32
n5
3.6262839631767E+40
2 √n
11374.863164012
3 √n
505.78287486482
4 √n
106.65300353957
5 √n
41.915868806104
1 , 2 , 4 , 8 , 23 , 46 , 92 , 184 , 703193 , 1406386 , 2812772 , 5625544 , 16173439 , 32346878 , 64693756 , 129387512
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
-129387511
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 129387512 can be divided by 16 positive divisors.
The sum of these divisors (counting 129387512) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101101100100101111111000
3
Ternary
100000110120022002
4
Quaternary
13231210233320
5
Quinary
231110400022
6
Senary
20501120132
8
Octal
755445770
10
Decimal
129387512
12
Duodecimal
373b9048
16
Hexadecimal
7b64bf8
20
Vigesimal
208d8fc
36
Base36
25181k
md5
f5e4603fb66f00e70a63905fa534f428
sha1
48bb2883bda05d4634afc405041d148fc2e9ae18
sha256
c2f79b66bb93c73cdf40d6da1038ded01952017eb42572b5f32134d2dba0f3b4
sha512
f0b2fe08856c48be4efdbd3cd64d01c9b8e9d553e0fcb0fc54ddd1236568b9ed64857505a3645ce660782e74707ab19d4f507b12e286a265ab04e34bf06656f5
ripemd-160
fa8009a69d18c16159bc3b1ae130c39d130f29b2
Diameter
258775024
Circumference
812965714.33092
Area
5.259380555929E+16
Volume
9.0733088639045E+24
Surface area
2.1037522223716E+17
Circumference
812965714.33092
Perimeter
517550048
Area
16741128261550144
Diagonal
182981574.27211
Surface area
100446769569300864
Volume
2.1660929338349E+24
Space diagonal
224105744.64893
Perimeter
388162536
Area
7.249121181258E+15
Altitude
112052872.32446
Surface area
7.249121181258E+15
Volume
2.5527650036582E+23
Height
60993858.090704