20128875 is an odd 8-digits composite number following 20128874
and preceding 20128876 . In scientific notation, it is written as 2.0128875 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 32 positive divisors.
There are 9907200 positive integers (up to 20128875) that are relatively prime to 20128875.
20128875 has 32 divisors, whose sum is 36079680
The reverse of 20128875 is 57882102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred twenty-eight thousand eight hundred seventy-five
Scientific notation
2.0128875 × 10^7
Engineering notation
2.0128875 × 10^6
Prime Factorization
5 × 5 × 3 × 5 × 13 × 4129
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
805155
Product of the distinct prime numbers
The prime factorization of 20128875 is 5 × 5 × 3 × 5 × 13 × 4129.
Since it has a total of 6 prime factors.
4 , 7 , 94 , 3 , 193 , 686 , 6786 , 5676 , 7154 , 49365 , 972859 , 481321 , 3260807 , 9601594 , 26461266 , 56992897 , 288802921 , 484091633 , 3718209104 , 3851495384
n×2
40257750
n×3
60386625
n×4
80515500
n×5
100644375
n÷2
10064437.5
n÷3
6709625
n÷3
5032218.75
n÷5
4025775
n2
405171608765625
n3
8.1556486663922E+21
n4
1.6416403254972E+29
n5
3.3044372906893E+36
2 √n
4486.5214810586
3 √n
272.02354809826
4 √n
66.981501036171
5 √n
28.891088231261
1 , 3 , 5 , 13 , 15 , 25 , 39 , 65 , 75 , 125 , 195 , 325 , 375 , 975 , 1625 , 4129 , 4875 , 12387 , 20645 , 53677 , 61935 , 103225 , 161031 , 268385 , 309675 , 516125 , 805155 , 1341925 , 1548375 , 4025775 , 6709625 , 20128875
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
-20128874
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 20128875 can be divided by 32 positive divisors.
The sum of these divisors (counting 20128875) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100110010010001101011
3
Ternary
1101212122121220
4
Quaternary
1030302101223
5
Quinary
20123111000
6
Senary
1555233123
8
Octal
114622153
10
Decimal
20128875
12
Duodecimal
68a87a3
16
Hexadecimal
133246b
20
Vigesimal
65g23f
36
Base36
bzfjf
md5
65a8377fa179cce44cb06aa717548cc5
sha1
43072c0e0d225a4163f3008b2434fc92f893fa6b
sha256
6b55926ecfbc6303ec4d931b071862c68bd94e28610ee2501dc3c778081a5632
sha512
cb4ba38dd4bc1c43dff0475ae9ba1621329714824486b8c587cd199481c8c3cd5f8fa562e9979b2a51e284b6e48cd4af6cb3b3b1a96b36149c8167d422df20b6
ripemd-160
2c339ab6f219cb3353a2a9d4ea836acc5e7e93e0
Diameter
40257750
Circumference
126473451.65005
Area
1.2728841495412E+15
Volume
3.4162301247463E+22
Surface area
5.091536598165E+15
Circumference
126473451.65005
Perimeter
80515500
Area
405171608765625
Diagonal
28466528.020313
Surface area
2431029652593750
Volume
8.1556486663922E+21
Space diagonal
34864234.199203
Perimeter
60386625
Area
1.7544445304162E+14
Altitude
17432117.099601
Surface area
1.7544445304162E+14
Volume
9.6115241283015E+20
Height
9488842.6734376