129488905 is an odd 9-digits composite number following 129488904
and preceding 129488906 . In scientific notation, it is written as 1.29488905 × 10^8.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 81961920 positive integers (up to 129488905) that are relatively prime to 129488905.
129488905 has 16 divisors, whose sum is 191245824
The reverse of 129488905 is 509884921
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred twenty-nine million four hundred eighty-eight thousand nine hundred five
Scientific notation
1.29488905 × 10^8
Engineering notation
1.29488905 × 10^6
Prime Factorization
5 × 7 × 13 × 284591
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
129488905
Product of the distinct prime numbers
The prime factorization of 129488905 is 5 × 7 × 13 × 284591.
Since it has a total of 4 prime factors.
8 , 8 , 11 , 27 , 488 , 26 , 7231 , 2174 , 77553 , 30498 , 345507 , 944002 , 2314141 , 9267171 , 8829523 , 44998573 , 991494222 , 125183134 , 9985084997 , 7627368346
n×2
258977810
n×3
388466715
n×4
517955620
n×5
647444525
n÷2
64744452.5
n÷3
43162968.333333
n÷3
32372226.25
n÷5
25897781
n2
16767376518099025
n3
2.1711892250514E+24
n4
2.811449152997E+32
n5
3.6405147228476E+40
2 √n
11379.319179986
3 √n
505.91495730033
4 √n
106.67389174482
5 √n
41.922436123257
1 , 5 , 7 , 13 , 35 , 65 , 91 , 455 , 284591 , 1422955 , 1992137 , 3699683 , 9960685 , 18498415 , 25897781 , 129488905
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
-129488904
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 129488905 can be divided by 16 positive divisors.
The sum of these divisors (counting 129488905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101101111101100000001001
3
Ternary
100000122201101101
4
Quaternary
13231331200021
5
Quinary
231122121110
6
Senary
20503221401
8
Octal
755754011
10
Decimal
129488905
12
Duodecimal
37447861
16
Hexadecimal
7b7d809
20
Vigesimal
2096255
36
Base36
253ea1
md5
ca39925b082cef96bd254ab6ade34c3d
sha1
a9741fe9de2be37451a2f9e0b6e5c583162997c4
sha256
d6d561a632c7c0bbbc9ed6bd58b6961c9f0b00e56f17643761cca5b29b8ab57a
sha512
235720d705d258333b12c9bc4282d01f386efb86018accf80cd5970f37a8fabf700ab2d2ca63c6d8f9fb4353d62d172b72b87f1420412fe2f57f0892652bb3bf
ripemd-160
4c87feb46d100f772ed59a8e610886f0a86cfc0e
Diameter
258977810
Circumference
813602785.33877
Area
5.2676266889234E+16
Volume
9.0946561586329E+24
Surface area
2.1070506755694E+17
Circumference
813602785.33877
Perimeter
517955620
Area
16767376518099025
Diagonal
183124965.62784
Surface area
100604259108594150
Volume
2.1711892250514E+24
Space diagonal
224281362.47646
Perimeter
388466715
Area
7.2604870097462E+15
Altitude
112140681.23823
Surface area
7.2604870097462E+15
Volume
2.558771040455E+23
Height
61041655.20928