129156920 is an even 9-digits composite number following 129156919
and preceding 129156921 . In scientific notation, it is written as 1.29156920 × 10^8.
The sum of its digits is 35. It has a total of 6 prime factors and 32 positive divisors.
There are 51582720 positive integers (up to 129156920) that are relatively prime to 129156920.
129156920 has 32 divisors, whose sum is 291053520
The reverse of 129156920 is 029651921
Previous prime number is 4243
Is Prime? no
Number parity even
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-nine million one hundred fifty-six thousand nine hundred twenty
Scientific notation
1.29156920 × 10^8
Engineering notation
1.29156920 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 4243 × 761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
32289230
Product of the distinct prime numbers
The prime factorization of 129156920 is 2 × 2 × 2 × 5 × 4243 × 761.
Since it has a total of 6 prime factors.
10 , 2 , 43 , 35 , 117 , 457 , 2361 , 1972 , 56644 , 48116 , 869336 , 158571 , 809241 , 8796848 , 22770722 , 74146639 , 320976960 , 165786546 , 803077133 , 3262186611
n×2
258313840
n×3
387470760
n×4
516627680
n×5
645784600
n÷2
64578460
n÷3
43052306.666667
n÷3
32289230
n÷5
25831384
n2
16681509983886400
n3
2.154532450468E+24
n4
2.782727753425E+32
n5
3.5940854583089E+40
2 √n
11364.722609901
3 √n
505.48223060501
4 √n
106.60545300265
5 √n
41.900917808916
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 761 , 1522 , 3044 , 3805 , 4243 , 6088 , 7610 , 8486 , 15220 , 16972 , 21215 , 30440 , 33944 , 42430 , 84860 , 169720 , 3228923 , 6457846 , 12915692 , 16144615 , 25831384 , 32289230 , 64578460 , 129156920
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129156919
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129156920 can be divided by 32 positive divisors.
The sum of these divisors (counting 129156920) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101100101100011100111000
3
Ternary
100000000211222122
4
Quaternary
13230230130320
5
Quinary
231031010140
6
Senary
20452140412
8
Octal
754543470
10
Decimal
129156920
12
Duodecimal
37307708
16
Hexadecimal
7b2c738
20
Vigesimal
2074c60
36
Base36
24wa48
md5
e1df9df17d8bda2cca4c6eb2adbeae64
sha1
78148e54c400bed4f4443645d8b24ef40655e574
sha256
0e95533b2c416e350257e84948907eb0d0a9c7ddd2ed418e2588d49195f1f419
sha512
01201d76fd6181338e96933c889af441485512c5fd44395a57614342f5c524b6b38d5fc4421ec5915a16f5607843263509daa77e1436980efd9db4a51d6715ed
ripemd-160
263aec669b2454cc2a6ba90899d403c8a239cada
Diameter
258313840
Circumference
811516862.06457
Area
5.2406509216162E+16
Volume
9.0248844244148E+24
Surface area
2.0962603686465E+17
Circumference
811516862.06457
Perimeter
516627680
Area
16681509983886400
Diagonal
182655467.93834
Surface area
100089059903318400
Volume
2.154532450468E+24
Space diagonal
223706347.58911
Perimeter
387470760
Area
7.2233057097647E+15
Altitude
111853173.79455
Surface area
7.2233057097647E+15
Volume
2.539140843354E+23
Height
60885155.979446