129121161 is an odd 9-digits composite number following 129121160
and preceding 129121162 . In scientific notation, it is written as 1.29121161 × 10^8.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 79459152 positive integers (up to 129121161) that are relatively prime to 129121161.
129121161 has 8 divisors, whose sum is 185404800
The reverse of 129121161 is 161121921
Previous prime number is 13
Is Prime? no Number parity odd Number length 9 Sum of Digits 24 Digital Root 6
Name
one hundred twenty-nine million one hundred twenty-one thousand one hundred sixty-one
Scientific notation
1.29121161 × 10^8
Engineering notation
1.29121161 × 10^6
Prime Factorization
3 × 13 × 3310799
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
129121161 Product of the distinct prime numbers
The prime factorization of 129121161 is 3 × 13 × 3310799.
Since it has a total of 3 prime factors.
10 , 3 , 8 , 63 , 573 , 471 , 1850 , 4197 , 44945 , 37415 , 581251 , 64466 , 8093852 , 9875740 , 1695475 , 69483151 , 48458532 , 640299757 , 9310296635 , 1872740771
n×2
258242322
n×3
387363483
n×4
516484644
n×5
645605805
n÷2
64560580.5
n÷3
43040387
n÷3
32280290.25
n÷5
25824232.2
n2
16672274217987921
n3
2.152743403537E+24
n4
2.7796472759978E+32
n5
3.5891128344733E+40
2 √n11363.149255378
3 √n505.4355762265
4 √n106.59807341307
5 √n41.898597374391
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-129121160 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129121161 can be divided by 8 positive divisors.
The sum of these divisors (counting 129121161) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101100100011101110001001
3
Ternary
22222222000221020
4
Quaternary
13230203232021
5
Quinary
231023334121
6
Senary
20451303053
8
Octal
754435611
10
Decimal
129121161
12
Duodecimal
372aaa89
16
Hexadecimal
7b23b89
20
Vigesimal
20702i1
36
Base36
24viix
md5
aa8f3f86eee14e9a5e5b4dfb5f230877
sha1
5aa0c3bf438e923d690a5002068b13693169833d
sha256
dc7034f7bddc2de0f338a12ed71ae77a40b529dd292228357e3dce434cebb9f2
sha512
9a3a9174ecb1ae8cb619a9db608f1e5b127a4b8caed0e40e10755d3e934c8a8f5b132931aae887e57cdfa63c27aeb217c070ce1c9b19d14a7a1c6d01ab8f531a
ripemd-160
96d507b05e801fee7d7e5cbc9c7fb39341a880b5
Diameter
258242322
Circumference
811292181.64117
Area
5.2377494201865E+16
Volume
9.0173904821542E+24
Surface area
2.0950997680746E+17
Circumference
811292181.64117
Perimeter
516484644
Area
16672274217987921
Diagonal
182604897.07556
Surface area
100033645307927526
Volume
2.152743403537E+24
Space diagonal
223644411.18428
Perimeter
387363483
Area
7.2193065058189E+15
Altitude
111822205.59214
Surface area
7.2193065058189E+15
Volume
2.537032431326E+23
Height
60868299.025187