20128907 is an odd 8-digits composite number following 20128906
and preceding 20128908 . In scientific notation, it is written as 2.0128907 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20119296 positive integers (up to 20128907) that are relatively prime to 20128907.
20128907 has 4 divisors, whose sum is 20138520
The reverse of 20128907 is 70982102
Previous prime number is 6529
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred twenty-eight thousand nine hundred seven
Scientific notation
2.0128907 × 10^7
Engineering notation
2.0128907 × 10^6
Prime Factorization
6529 × 3083
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20128907
Product of the distinct prime numbers
The prime factorization of 20128907 is 6529 × 3083.
Since it has a total of 2 prime factors.
7 , 6 , 75 , 3 , 566 , 236 , 7926 , 4267 , 28106 , 97063 , 201373 , 236493 , 3126227 , 3034018 , 95635520 , 7889682 , 922445743 , 638629329 , 9509328523 , 3816932274
n×2
40257814
n×3
60386721
n×4
80515628
n×5
100644535
n÷2
10064453.5
n÷3
6709635.6666667
n÷3
5032226.75
n÷5
4025781.4
n2
405172897014649
n3
8.1556875629284E+21
n4
1.6416507647524E+29
n5
3.3044635570181E+36
2 √n
4486.5250472944
3 √n
272.02369224854
4 √n
66.981527657216
5 √n
28.891097417212
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20128906
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20128907 can be divided by 4 positive divisors.
The sum of these divisors (counting 20128907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010010010001011
3
Ternary
1101212122200002
4
Quaternary
1030302102023
5
Quinary
20123111112
6
Senary
1555233215
8
Octal
114622213
10
Decimal
20128907
12
Duodecimal
68a880b
16
Hexadecimal
133248b
20
Vigesimal
65g257
36
Base36
bzfkb
md5
076c1c9741ff223b535d04560e11531e
sha1
7dbde8c19d727ae629c73af2342240606e5a626f
sha256
91c3f9b2ad7ad0b5168af22ffed3be6ab3b287b9d047a49ed26eb19bc1be32ec
sha512
5077761abc5244aa689923cb9983916e7ea36ceef35c186968b98ea2d5ad5cca178e1959d30cd2d9993514a1d5e6b8dcaf9f66bf2b186e98f1e6214e4632d227
ripemd-160
0f8c9206089ed9e86a48ee5bf91546de0b4c6d83
Diameter
40257814
Circumference
126473652.71198
Area
1.2728881966949E+15
Volume
3.4162464176893E+22
Surface area
5.0915527867797E+15
Circumference
126473652.71198
Perimeter
80515628
Area
405172897014649
Diagonal
28466573.275147
Surface area
2431037382087894
Volume
8.1556875629284E+21
Space diagonal
34864289.624829
Perimeter
60386721
Area
1.7544501086981E+14
Altitude
17432144.812414
Surface area
1.7544501086981E+14
Volume
9.6115699683092E+20
Height
9488857.7583822