129968405 is an odd 9-digits composite number following 129968404
and preceding 129968406 . In scientific notation, it is written as 1.29968405 × 10^8.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 88992960 positive integers (up to 129968405) that are relatively prime to 129968405.
129968405 has 16 divisors, whose sum is 178498944
The reverse of 129968405 is 504869921
Previous prime number is 821
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
one hundred twenty-nine million nine hundred sixty-eight thousand four hundred five
Scientific notation
1.29968405 × 10^8
Engineering notation
1.29968405 × 10^6
Prime Factorization
5 × 7 × 821 × 4523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
129968405
Product of the distinct prime numbers
The prime factorization of 129968405 is 5 × 7 × 821 × 4523.
Since it has a total of 4 prime factors.
4 , 5 , 26 , 67 , 240 , 584 , 7766 , 4168 , 98389 , 86426 , 460335 , 939375 , 2941300 , 8040594 , 72362906 , 71930576 , 417539654 , 136757437 , 5927664990 , 6993036326
n×2
259936810
n×3
389905215
n×4
519873620
n×5
649842025
n÷2
64984202.5
n÷3
43322801.666667
n÷3
32492101.25
n÷5
25993681
n2
16891786298244025
n3
2.1953985227836E+24
n4
2.8533244434554E+32
n5
3.7084202686342E+40
2 √n
11400.368634391
3 √n
506.53865913445
4 √n
106.77250879506
5 √n
41.953438160297
1 , 5 , 7 , 35 , 821 , 4105 , 4523 , 5747 , 22615 , 28735 , 31661 , 158305 , 3713383 , 18566915 , 25993681 , 129968405
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
-129968404
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 129968405 can be divided by 16 positive divisors.
The sum of these divisors (counting 129968405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101111110010100100010101
3
Ternary
100001120002010122
4
Quaternary
13233302210111
5
Quinary
231232442110
6
Senary
20521401325
8
Octal
757624425
10
Decimal
129968405
12
Duodecimal
37639245
16
Hexadecimal
7bf2915
20
Vigesimal
20c6105
36
Base36
25do9h
md5
056924ba377e4a3bafef35da2a5907c4
sha1
75a0d765211273e60d1be6474298d07ea9eb639d
sha256
0f23688b98a6c68134ec28290856561bf87889b0ebd97a0e64202927ed2023dc
sha512
84feef047dc9100ef43847e0ecaf9408251ca0ce2d8ba30f6d8531d826ee6117d7ea3983b54d763dfb13d33320c940760c9e44d150c1c796b9351cef46d4422d
ripemd-160
969af7b1a6815432f0e41b55efac6175e30914f1
Diameter
259936810
Circumference
816615572.69357
Area
5.3067111740572E+16
Volume
9.1960638278386E+24
Surface area
2.1226844696229E+17
Circumference
816615572.69357
Perimeter
519873620
Area
16891786298244025
Diagonal
183803081.031
Surface area
101350717789464150
Volume
2.1953985227836E+24
Space diagonal
225111880.83869
Perimeter
389905215
Area
7.3143580247886E+15
Altitude
112555940.41934
Surface area
7.3143580247886E+15
Volume
2.5873019714454E+23
Height
61267693.677