129121903 is an odd 9-digits composite number following 129121902
and preceding 129121904 . In scientific notation, it is written as 1.29121903 × 10^8.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 128842560 positive integers (up to 129121903) that are relatively prime to 129121903.
129121903 has 4 divisors, whose sum is 129401248
The reverse of 129121903 is 309121921
Previous prime number is 463
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
one hundred twenty-nine million one hundred twenty-one thousand nine hundred three
Scientific notation
1.29121903 × 10^8
Engineering notation
1.29121903 × 10^6
Prime Factorization
463 × 278881
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129121903
Product of the distinct prime numbers
The prime factorization of 129121903 is 463 × 278881.
Since it has a total of 2 prime factors.
8 , 8 , 6 , 50 , 766 , 575 , 7889 , 8295 , 40716 , 18392 , 176425 , 48427 , 9439524 , 823802 , 25447995 , 22650389 , 157930264 , 426002496 , 2371336970 , 9865427306
n×2
258243806
n×3
387365709
n×4
516487612
n×5
645609515
n÷2
64560951.5
n÷3
43040634.333333
n÷3
32280475.75
n÷5
25824380.6
n2
16672465834341409
n3
2.1527805162326E+24
n4
2.7797111699728E+32
n5
3.5892159605725E+40
2 √n
11363.181904731
3 √n
505.43654439334
4 √n
106.59822655528
5 √n
41.898645528678
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
-129121902
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 129121903 can be divided by 4 positive divisors.
The sum of these divisors (counting 129121903) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100100011111001101111
3
Ternary
22222222001221201
4
Quaternary
13230203321233
5
Quinary
231023400103
6
Senary
20451310331
8
Octal
754437157
10
Decimal
129121903
12
Duodecimal
372ab3a7
16
Hexadecimal
7b23e6f
20
Vigesimal
20704f3
36
Base36
24vj3j
md5
0ee809a962d2ac2cca34e42de32afaf5
sha1
1544aad4f7ca1a45a62464f616320ce94b946b75
sha256
8f4e112249bc45af43db4ae1b86dbb21126ee58199c0d99edd9cd2d68338fdb2
sha512
d5db5e2f2c547fae4247ea1cf389609ea6e0e8d944b6564c3ef1914e0595cee36c9da9e8ebdb58acc56a4d8fa60a122a8431ad7e2b8f555bd3a0178a35bf9e95
ripemd-160
f721ae23b0ea9b601e74b0552e9f8284560688ba
Diameter
258243806
Circumference
811296843.76467
Area
5.2378096182394E+16
Volume
9.0175459394503E+24
Surface area
2.0951238472958E+17
Circumference
811296843.76467
Perimeter
516487612
Area
16672465834341409
Diagonal
182605946.42202
Surface area
100034795006048454
Volume
2.1527805162326E+24
Space diagonal
223645696.36598
Perimeter
387365709
Area
7.2193894781339E+15
Altitude
111822848.18299
Surface area
7.2193894781339E+15
Volume
2.5370761690573E+23
Height
60868648.807341