129785870 is an even 9-digits composite number following 129785869
and preceding 129785871 . In scientific notation, it is written as 1.29785870 × 10^8.
The sum of its digits is 47. It has a total of 5 prime factors and 32 positive divisors.
There are 50202880 positive integers (up to 129785870) that are relatively prime to 129785870.
129785870 has 32 divisors, whose sum is 241444800
The reverse of 129785870 is 078587921
Previous prime number is 53
Is Prime? no
Number parity even
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred twenty-nine million seven hundred eighty-five thousand eight hundred seventy
Scientific notation
1.29785870 × 10^8
Engineering notation
1.29785870 × 10^6
Prime Factorization
2 × 5 × 71 × 53 × 3449
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
129785870
Product of the distinct prime numbers
The prime factorization of 129785870 is 2 × 5 × 71 × 53 × 3449.
Since it has a total of 5 prime factors.
8 , 9 , 38 , 99 , 64 , 917 , 6106 , 2955 , 26845 , 90907 , 731272 , 716483 , 5971120 , 7436747 , 95096022 , 93667905 , 883852281 , 957764961 , 1100123414 , 8308318388
n×2
259571740
n×3
389357610
n×4
519143480
n×5
648929350
n÷2
64892935
n÷3
43261956.666667
n÷3
32446467.5
n÷5
25957174
n2
16844372051656900
n3
2.186161481328E+24
n4
2.8373286981464E+32
n5
3.682451735649E+40
2 √n
11392.360159335
3 √n
506.30141082324
4 √n
106.73499969239
5 √n
41.941647176821
1 , 2 , 5 , 10 , 53 , 71 , 106 , 142 , 265 , 355 , 530 , 710 , 3449 , 3763 , 6898 , 7526 , 17245 , 18815 , 34490 , 37630 , 182797 , 244879 , 365594 , 489758 , 913985 , 1224395 , 1827970 , 2448790 , 12978587 , 25957174 , 64892935 , 129785870
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
-129785869
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 129785870 can be divided by 32 positive divisors.
The sum of these divisors (counting 129785870) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101111000110000000001110
3
Ternary
100001012210202002
4
Quaternary
13233012000032
5
Quinary
231211121440
6
Senary
20513432302
8
Octal
757060016
10
Decimal
129785870
12
Duodecimal
3756b692
16
Hexadecimal
7bc600e
20
Vigesimal
20b34da
36
Base36
259rf2
md5
80e26baa76fa7a556f13831269c0aa20
sha1
9bb87f6e8d0d64cc22c4e06ad3fbaeed7cf5a9d2
sha256
655f355a30d60a3cbbf3aff5ad9f381ab0bdbcbda17664792e4257c0cf748ca5
sha512
8a5f481e2fa3678d45b4bda1270a462d8cfaefe95bc047332ad7a55964ecaff5f51b42f8b042f8da630c99ef99ccfc021b0a0f1b3b22ae5c403cadb3535b0541
ripemd-160
d93082291009858f5fdfa68a2ce214c79ccd73f5
Diameter
259571740
Circumference
815468671.46352
Area
5.2918155491819E+16
Volume
9.1573717990679E+24
Surface area
2.1167262196727E+17
Circumference
815468671.46352
Perimeter
519143480
Area
16844372051656900
Diagonal
183544937.55839
Surface area
101066232309941400
Volume
2.186161481328E+24
Space diagonal
224795720.94453
Perimeter
389357610
Area
7.2938270537657E+15
Altitude
112397860.47226
Surface area
7.2938270537657E+15
Volume
2.5764160136931E+23
Height
61181645.852797