20128910 is an even 8-digits composite number following 20128909
and preceding 20128911 . In scientific notation, it is written as 2.0128910 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 7701408 positive integers (up to 20128910) that are relatively prime to 20128910.
20128910 has 16 divisors, whose sum is 37807776
The reverse of 20128910 is 01982102
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-eight thousand nine hundred ten
Scientific notation
2.0128910 × 10^7
Engineering notation
2.0128910 × 10^6
Prime Factorization
2 × 5 × 23 × 87517
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20128910
Product of the distinct prime numbers
The prime factorization of 20128910 is 2 × 5 × 23 × 87517.
Since it has a total of 4 prime factors.
9 , 5 , 26 , 6 , 213 , 749 , 6682 , 7728 , 22908 , 81527 , 130303 , 379039 , 66499 , 4477791 , 33331433 , 7132141 , 23898498 , 701039998 , 1705843061 , 3215715424
n×2
40257820
n×3
60386730
n×4
80515640
n×5
100644550
n÷2
10064455
n÷3
6709636.6666667
n÷3
5032227.5
n÷5
4025782
n2
405173017788100
n3
8.1556912094851E+21
n4
1.6416517434352E+29
n5
3.3044660194949E+36
2 √n
4486.5253816289
3 √n
272.02370576262
4 √n
66.981530152937
5 √n
28.891098278394
1 , 2 , 5 , 10 , 23 , 46 , 115 , 230 , 87517 , 175034 , 437585 , 875170 , 2012891 , 4025782 , 10064455 , 20128910
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20128909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20128910 can be divided by 16 positive divisors.
The sum of these divisors (counting 20128910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010010010001110
3
Ternary
1101212122200012
4
Quaternary
1030302102032
5
Quinary
20123111120
6
Senary
1555233222
8
Octal
114622216
10
Decimal
20128910
12
Duodecimal
68a8812
16
Hexadecimal
133248e
20
Vigesimal
65g25a
36
Base36
bzfke
md5
31db1c9d583c428b64b5417df346f1d5
sha1
0f93d6001b912f364b89a2872b04f6851d14b8be
sha256
cdd4e38c1c3ae33569677f8368e173a79dd4da47a5ddf97c986c5b72c8b3852a
sha512
a04349488288541f23c4a5d5b68455fd8d1a280d9b29e1d53a2ef05ec98abf3dfae8afc15542d7045e37b2ec9866a987e993e1fbc15c578cbb55f89518f216e7
ripemd-160
54526931847df0deabc7ee298d5a5bb008a79768
Diameter
40257820
Circumference
126473671.56154
Area
1.2728885761159E+15
Volume
3.4162479451554E+22
Surface area
5.0915543044636E+15
Circumference
126473671.56154
Perimeter
80515640
Area
405173017788100
Diagonal
28466577.517787
Surface area
2431038106728600
Volume
8.1556912094851E+21
Space diagonal
34864294.820981
Perimeter
60386730
Area
1.7544506316625E+14
Altitude
17432147.410491
Surface area
1.7544506316625E+14
Volume
9.6115742658173E+20
Height
9488859.1725958