129120971 is an odd 9-digits composite number following 129120970
and preceding 129120972 . In scientific notation, it is written as 1.29120971 × 10^8.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 110675112 positive integers (up to 129120971) that are relatively prime to 129120971.
129120971 has 4 divisors, whose sum is 147566832
The reverse of 129120971 is 179021921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
one hundred twenty-nine million one hundred twenty thousand nine hundred seventy-one
Scientific notation
1.29120971 × 10^8
Engineering notation
1.29120971 × 10^6
Prime Factorization
7 × 18445853
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129120971
Product of the distinct prime numbers
The prime factorization of 129120971 is 7 × 18445853.
Since it has a total of 2 prime factors.
1 , 6 , 63 , 66 , 104 , 960 , 3797 , 9606 , 55296 , 8879 , 223390 , 964894 , 3655965 , 4650323 , 90866113 , 43793804 , 299572915 , 938303408 , 3011043645 , 854279709
n×2
258241942
n×3
387362913
n×4
516483884
n×5
645604855
n÷2
64560485.5
n÷3
43040323.666667
n÷3
32280242.75
n÷5
25824194.2
n2
16672225151982841
n3
2.1527339003546E+24
n4
2.7796309151841E+32
n5
3.5890864279019E+40
2 √n
11363.140895017
3 √n
505.43532831256
4 √n
106.59803419865
5 √n
41.898585043742
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
-129120970
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 129120971 can be divided by 4 positive divisors.
The sum of these divisors (counting 129120971) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100100011101011001011
3
Ternary
22222222000200012
4
Quaternary
13230203223023
5
Quinary
231023332341
6
Senary
20451302135
8
Octal
754435313
10
Decimal
129120971
12
Duodecimal
372aa94b
16
Hexadecimal
7b23acb
20
Vigesimal
207028b
36
Base36
24vidn
md5
971d843828de889022bf508f9a8f01c5
sha1
0cf351b804ecf3fca9fe404e27fe883311b98323
sha256
6470e7a4fd275208410e7dcd0a10f5169d715e9fb05cc7e0e95d4c2966a0a638
sha512
819aa8d252d60f5e5c129d8e3d2b5e70a5f89cd13f46a1c812ffbc86163e7f96ea027a90423cf5d9999925847d59e63b342ed2f668ebde53c397ca907a1db155
ripemd-160
2cd145e83a11791b6463bf4008894c1425667714
Diameter
258241942
Circumference
811290987.83596
Area
5.2377340056464E+16
Volume
9.0173506753171E+24
Surface area
2.0950936022586E+17
Circumference
811290987.83596
Perimeter
516483884
Area
16672225151982841
Diagonal
182604628.37498
Surface area
100033350911897046
Volume
2.1527339003546E+24
Space diagonal
223644082.09463
Perimeter
387362913
Area
7.2192852596155E+15
Altitude
111822041.04731
Surface area
7.2192852596155E+15
Volume
2.5370212317182E+23
Height
60868209.458328