129121830 is an even 9-digits composite number following 129121829
and preceding 129121831 . In scientific notation, it is written as 1.29121830 × 10^8.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 34090848 positive integers (up to 129121830) that are relatively prime to 129121830.
129121830 has 32 divisors, whose sum is 243419904
The reverse of 129121830 is 038121921
Previous prime number is 103
Is Prime? no Number parity even Number length 9 Sum of Digits 27 Digital Root 9
Name
one hundred twenty-nine million one hundred twenty-one thousand eight hundred thirty
Scientific notation
1.29121830 × 10^8
Engineering notation
1.29121830 × 10^6
Prime Factorization
2 × 5 × 27 × 103 × 4643
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
129121830 Product of the distinct prime numbers
The prime factorization of 129121830 is 2 × 5 × 27 × 103 × 4643.
Since it has a total of 5 prime factors.
4 , 1 , 7 , 55 , 674 , 659 , 3842 , 4924 , 53150 , 10269 , 821910 , 775451 , 4307345 , 9248609 , 26533076 , 31196556 , 591982702 , 564653092 , 9950082789 , 2170254855
n×2
258243660
n×3
387365490
n×4
516487320
n×5
645609150
n÷2
64560915
n÷3
43040610
n÷3
32280457.5
n÷5
25824366
n2
16672446982548900
n3
2.1527768649647E+24
n4
2.779704883859E+32
n5
3.5892058146382E+40
2 √n11363.178692602
3 √n505.43644914258
4 √n106.59821148876
5 √n41.898640791137
1 , 2 , 5 , 10 , 27 , 54 , 103 , 135 , 206 , 270 , 515 , 1030 , 2781 , 4643 , 5562 , 9286 , 13905 , 23215 , 27810 , 46430 , 125361 , 250722 , 478229 , 626805 , 956458 , 1253610 , 2391145 , 4782290 , 12912183 , 25824366 , 64560915 , 129121830
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
-129121829 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 129121830 can be divided by 32 positive divisors.
The sum of these divisors (counting 129121830) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101100100011111000100110
3
Ternary
22222222001212000
4
Quaternary
13230203320212
5
Quinary
231023344310
6
Senary
20451310130
8
Octal
754437046
10
Decimal
129121830
12
Duodecimal
372ab346
16
Hexadecimal
7b23e26
20
Vigesimal
20704ba
36
Base36
24vj1i
md5
6f245c7a09fe2a3ee49de8ae303cf3f4
sha1
bed6e877a87339eab02e54a14e3e83a1ac72773d
sha256
f9e8d94db64271d8405497b2adc8e49524b6ea1fde1762ea3a6d3dec88d4971d
sha512
6121d7ceabc178bb345ec2b164678ea834d3dc489ac033a3d4438d5af2e8a1c171ebe3477c89f076e3b9d615a799c692259a402d8c0305eb0dc8cf86b6859f04
ripemd-160
dce0c9634f0d8810eb09a78d6143a71f45ff9567
Diameter
258243660
Circumference
811296385.09214
Area
5.2378036957741E+16
Volume
9.0175306450549E+24
Surface area
2.0951214783096E+17
Circumference
811296385.09214
Perimeter
516487320
Area
16672446982548900
Diagonal
182605843.18443
Surface area
100034681895293400
Volume
2.1527768649647E+24
Space diagonal
223645569.92627
Perimeter
387365490
Area
7.2193813150683E+15
Altitude
111822784.96314
Surface area
7.2193813150683E+15
Volume
2.5370718659968E+23
Height
60868614.394811