129121100 is an even 9-digits composite number following 129121099
and preceding 129121101 . In scientific notation, it is written as 1.29121100 × 10^8.
The sum of its digits is 17. It has a total of 5 prime factors and 18 positive divisors.
There are 51648400 positive integers (up to 129121100) that are relatively prime to 129121100.
129121100 has 18 divisors, whose sum is 280193004
The reverse of 129121100 is 001121921
Previous prime number is 5
Is Prime? no
Number parity even
Number length 9
Sum of Digits 17
Digital Root 8
Name
one hundred twenty-nine million one hundred twenty-one thousand one hundred
Scientific notation
1.29121100 × 10^8
Engineering notation
1.29121100 × 10^6
Prime Factorization
2 × 2 × 5 × 5 × 1291211
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
12912110
Product of the distinct prime numbers
The prime factorization of 129121100 is 2 × 2 × 5 × 5 × 1291211.
Since it has a total of 5 prime factors.
2 , 10 , 46 , 45 , 951 , 265 , 7934 , 8199 , 70357 , 70199 , 915664 , 200916 , 7038708 , 7959952 , 48507844 , 67492317 , 290190790 , 821983335 , 5988413200 , 5377632574
n×2
258242200
n×3
387363300
n×4
516484400
n×5
645605500
n÷2
64560550
n÷3
43040366.666667
n÷3
32280275
n÷5
25824220
n2
16672258465210000
n3
2.1527403525122E+24
n4
2.7796420233077E+32
n5
3.5891043565571E+40
2 √n
11363.146571263
3 √n
505.4354966331
4 √n
106.59806082318
5 √n
41.898593415605
1 , 2 , 4 , 5 , 10 , 20 , 25 , 50 , 100 , 1291211 , 2582422 , 5164844 , 6456055 , 12912110 , 25824220 , 32280275 , 64560550 , 129121100
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129121099
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129121100 can be divided by 18 positive divisors.
The sum of these divisors (counting 129121100) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
111101100100011101101001100
3
Ternary
22222222000211222
4
Quaternary
13230203231030
5
Quinary
231023333400
6
Senary
20451302512
8
Octal
754435514
10
Decimal
129121100
12
Duodecimal
372aaa38
16
Hexadecimal
7b23b4c
20
Vigesimal
20702f0
36
Base36
24vih8
md5
620de640ce6f77396e114117cf4e3500
sha1
1f654a22e0d8c9ba7389bc2b59bd0c48918c65d9
sha256
82e980626cc0022450470d36c7b9282cde0a03bb1f97306110895d3dca51a93b
sha512
8e0c97ecce039580ce347304084fe14ccbbb2fcd529aa799b1db9caa003cb04121beefcf200e17e620ae5e427e770097dddc585fb6f686e041f4c9f0f9f5fa19
ripemd-160
87e913500479159ff14d0b37025db235aee4f37a
Diameter
258242200
Circumference
811291798.36687
Area
5.2377444713054E+16
Volume
9.0173777020516E+24
Surface area
2.0950977885222E+17
Circumference
811291798.36687
Perimeter
516484400
Area
16672258465210000
Diagonal
182604810.80853
Surface area
100033550791260000
Volume
2.1527403525122E+24
Space diagonal
223644305.52918
Perimeter
387363300
Area
7.219299684666E+15
Altitude
111822152.76459
Surface area
7.219299684666E+15
Volume
2.5370288356589E+23
Height
60868270.269511