129440905 is an odd 9-digits composite number following 129440904
and preceding 129440906 . In scientific notation, it is written as 1.29440905 × 10^8.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 93957760 positive integers (up to 129440905) that are relatively prime to 129440905.
129440905 has 16 divisors, whose sum is 169776000
The reverse of 129440905 is 509044921
Previous prime number is 599
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
one hundred twenty-nine million four hundred forty thousand nine hundred five
Scientific notation
1.29440905 × 10^8
Engineering notation
1.29440905 × 10^6
Prime Factorization
5 × 11 × 599 × 3929
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
129440905
Product of the distinct prime numbers
The prime factorization of 129440905 is 5 × 11 × 599 × 3929.
Since it has a total of 4 prime factors.
1 , 2 , 67 , 65 , 976 , 981 , 5201 , 9978 , 49077 , 95066 , 690190 , 731757 , 6444808 , 9911128 , 66344695 , 26212720 , 704950891 , 393226732 , 8511873304 , 8512121872
n×2
258881810
n×3
388322715
n×4
517763620
n×5
647204525
n÷2
64720452.5
n÷3
43146968.333333
n÷3
32360226.25
n÷5
25888181
n2
16754947887219025
n3
2.1687756177495E+24
n4
2.8072827870343E+32
n5
3.6337722454464E+40
2 √n
11377.209895225
3 √n
505.85243735147
4 √n
106.66400468398
5 √n
41.919327632423
1 , 5 , 11 , 55 , 599 , 2995 , 3929 , 6589 , 19645 , 32945 , 43219 , 216095 , 2353471 , 11767355 , 25888181 , 129440905
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
-129440904
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 129440905 can be divided by 16 positive divisors.
The sum of these divisors (counting 129440905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101101110001110010001001
3
Ternary
100000120021112121
4
Quaternary
13231301302021
5
Quinary
231114102110
6
Senary
20502211241
8
Octal
755616211
10
Decimal
129440905
12
Duodecimal
37423b21
16
Hexadecimal
7b71c89
20
Vigesimal
2090255
36
Base36
252d8p
md5
43f9ae721b4607da969034be6cb3f5b8
sha1
5a0efd28bd82fd83496816d63bc3792d26641c8d
sha256
7b48252601ff655192c3ebca333ce9e1f23a763e4a0ac831d68014d44e97364d
sha512
c3a261e2a5deb04a4836c07ac0922302dde1d419afb2bfc296081944037fb47ef7d47508dd285b00db3bd8c7f2530a34f9c9b5f03b17b4e9290762748afe05a8
ripemd-160
2ea24d05760790e60552efe4e5a96fc1ee8219ac
Diameter
258881810
Circumference
813301192.44403
Area
5.2637221193767E+16
Volume
9.0845460640085E+24
Surface area
2.1054888477507E+17
Circumference
813301192.44403
Perimeter
517763620
Area
16754947887219025
Diagonal
183057083.37685
Surface area
100529687323314150
Volume
2.1687756177495E+24
Space diagonal
224198224.0377
Perimeter
388322715
Area
7.255105254708E+15
Altitude
112099112.01885
Surface area
7.255105254708E+15
Volume
2.5559265769712E+23
Height
61019027.792282