20128901 is an odd 8-digits composite number following 20128900
and preceding 20128902 . In scientific notation, it is written as 2.0128901 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 17487360 positive integers (up to 20128901) that are relatively prime to 20128901.
20128901 has 8 divisors, whose sum is 22952664
The reverse of 20128901 is 10982102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-eight thousand nine hundred one
Scientific notation
2.0128901 × 10^7
Engineering notation
2.0128901 × 10^6
Prime Factorization
17 × 13 × 91081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20128901
Product of the distinct prime numbers
The prime factorization of 20128901 is 17 × 13 × 91081.
Since it has a total of 3 prime factors.
1 , 5 , 84 , 97 , 89 , 432 , 2416 , 8647 , 22008 , 70979 , 25109 , 956224 , 1881515 , 1367729 , 10359543 , 64123069 , 575996688 , 473615348 , 3505005939 , 2428840291
n×2
40257802
n×3
60386703
n×4
80515604
n×5
100644505
n÷2
10064450.5
n÷3
6709633.6666667
n÷3
5032225.25
n÷5
4025780.2
n2
405172655467801
n3
8.1556802698185E+21
n4
1.6416488073883E+29
n5
3.3044586320687E+36
2 √n
4486.5243786254
3 √n
272.02366522037
4 √n
66.981522665773
5 √n
28.891095694847
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20128900
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20128901 can be divided by 8 positive divisors.
The sum of these divisors (counting 20128901) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010010010000101
3
Ternary
1101212122122212
4
Quaternary
1030302102011
5
Quinary
20123111101
6
Senary
1555233205
8
Octal
114622205
10
Decimal
20128901
12
Duodecimal
68a8805
16
Hexadecimal
1332485
20
Vigesimal
65g251
36
Base36
bzfk5
md5
e5b5238b9fec9b9da833cc34b8cb7444
sha1
e0d1fa122ed9b46bc8a96a803eed072fa3407262
sha256
39b0bbc60c9349164e45d8146df176efa6c2029d1881196d3914abb9fc5fc9bd
sha512
be96009fe3666651682abd8391b5b6b4cd286df20c7d8f021498d83c9be54a58fd77df68bcb2c05688988a02959211b16fefbad95280a3bef828f1b21468aed9
ripemd-160
cab7953001a9c64a1084d2d4e04efa075c12ce1b
Diameter
40257802
Circumference
126473615.01287
Area
1.2728874378531E+15
Volume
3.4162433627585E+22
Surface area
5.0915497514124E+15
Circumference
126473615.01287
Perimeter
80515604
Area
405172655467801
Diagonal
28466564.789865
Surface area
2431035932806806
Volume
8.1556802698185E+21
Space diagonal
34864279.232524
Perimeter
60386703
Area
1.7544490627696E+14
Altitude
17432139.616262
Surface area
1.7544490627696E+14
Volume
9.6115613732966E+20
Height
9488854.9299551