129021372 is an even 9-digits composite number following 129021371
and preceding 129021373 . In scientific notation, it is written as 1.29021372 × 10^8.
The sum of its digits is 27. It has a total of 5 prime factors and 18 positive divisors.
There are 43007112 positive integers (up to 129021372) that are relatively prime to 129021372.
129021372 has 18 divisors, whose sum is 326137448
The reverse of 129021372 is 273120921
Previous prime number is 3
Is Prime? no
Number parity even
Number length 9
Sum of Digits 27
Digital Root 9
Name
one hundred twenty-nine million twenty-one thousand three hundred seventy-two
Scientific notation
1.29021372 × 10^8
Engineering notation
1.29021372 × 10^6
Prime Factorization
2 × 2 × 3 × 3 × 3583927
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21503562
Product of the distinct prime numbers
The prime factorization of 129021372 is 2 × 2 × 3 × 3 × 3583927.
Since it has a total of 5 prime factors.
1 , 4 , 48 , 15 , 466 , 824 , 9448 , 2546 , 87646 , 30277 , 571856 , 8459 , 2801013 , 9874508 , 13633023 , 88552920 , 281382655 , 849725964 , 8419531697 , 5491580225
n×2
258042744
n×3
387064116
n×4
516085488
n×5
645106860
n÷2
64510686
n÷3
43007124
n÷3
32255343
n÷5
25804274.4
n2
16646514432762384
n3
2.1477561311328E+24
n4
2.7710644276017E+32
n5
3.5752653434956E+40
2 √n
11358.757502474
3 √n
505.30533702842
4 √n
106.57747183375
5 √n
41.892119253854
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 , 3583927 , 7167854 , 10751781 , 14335708 , 21503562 , 32255343 , 43007124 , 64510686 , 129021372
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
-129021371
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 129021372 can be divided by 18 positive divisors.
The sum of these divisors (counting 129021372) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
111101100001011010110111100
3
Ternary
22222202222001100
4
Quaternary
13230023112330
5
Quinary
231012140442
6
Senary
20445213100
8
Octal
754132674
10
Decimal
129021372
12
Duodecimal
37261190
16
Hexadecimal
7b0b5bc
20
Vigesimal
2067d8c
36
Base36
24tdj0
md5
04a3e90cdd3ac449f5ea41336a8d7d2c
sha1
af929e786c516f134ad52593e40def6e330c2344
sha256
e62df6965625a34bb3ba49a1a5a31863ec338bc7e35cc96be5ffb4503a1624e7
sha512
c2e30ec1866492ce83d4cc312b8613e1270cf6520166298aea3d1664156aabb2c410b7a9124efd42ab5e81ff1cc7a4190e7a29eda865c651e4fa8adeb857d030
ripemd-160
b359c38ebedd86932e77ca4443baaa5a43810edc
Diameter
258042744
Circumference
810665188.86255
Area
5.2296567449843E+16
Volume
8.996499844359E+24
Surface area
2.0918626979937E+17
Circumference
810665188.86255
Perimeter
516085488
Area
16646514432762384
Diagonal
182463774.11838
Surface area
99879086596574304
Volume
2.1477561311328E+24
Space diagonal
223471571.56624
Perimeter
387064116
Area
7.2081521916183E+15
Altitude
111735785.78312
Surface area
7.2081521916183E+15
Volume
2.5311548744316E+23
Height
60821258.039461