20128894 is an even 8-digits composite number following 20128893
and preceding 20128895 . In scientific notation, it is written as 2.0128894 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 10055976 positive integers (up to 20128894) that are relatively prime to 20128894.
20128894 has 8 divisors, whose sum is 30218760
The reverse of 20128894 is 49882102
Previous prime number is 1429
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred twenty-eight thousand eight hundred ninety-four
Scientific notation
2.0128894 × 10^7
Engineering notation
2.0128894 × 10^6
Prime Factorization
2 × 1429 × 7043
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20128894
Product of the distinct prime numbers
The prime factorization of 20128894 is 2 × 1429 × 7043.
Since it has a total of 3 prime factors.
1 , 10 , 15 , 4 , 292 , 214 , 2590 , 7707 , 56848 , 28410 , 166405 , 551048 , 2145278 , 3540472 , 46602194 , 62820063 , 563629035 , 471835783 , 5875842388 , 2967957775
n×2
40257788
n×3
60386682
n×4
80515576
n×5
100644470
n÷2
10064447
n÷3
6709631.3333333
n÷3
5032223.5
n÷5
4025778.8
n2
405172373663236
n3
8.1556717611957E+21
n4
1.641646523799E+29
n5
3.3044528863019E+36
2 √n
4486.5235985114
3 √n
272.0236336875
4 √n
66.98151684242
5 √n
28.891093685421
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
-20128893
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 20128894 can be divided by 8 positive divisors.
The sum of these divisors (counting 20128894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010010001111110
3
Ternary
1101212122122121
4
Quaternary
1030302101332
5
Quinary
20123111034
6
Senary
1555233154
8
Octal
114622176
10
Decimal
20128894
12
Duodecimal
68a87ba
16
Hexadecimal
133247e
20
Vigesimal
65g24e
36
Base36
bzfjy
md5
a222be659f8494b3929326e463278fce
sha1
bd70a63e3308f322bc94c014667cd550203522e0
sha256
ca4cb26307bf7ed50eb70eaa5445fcef4bf898b3b5328fa05b33b067d9d70e61
sha512
8974674f01dc8ac2b7848e394fbf603e2c9ef83cf32bd3b5aae4fc7d7270f810d3a62992cc5e209de931df42bd180b732dda54da3b85b9ee7afa58b989a65d37
ripemd-160
85b0e04f33ec5c36ed81a774a1fdce8dac2dc976
Diameter
40257788
Circumference
126473571.03058
Area
1.272886552538E+15
Volume
3.4162397986749E+22
Surface area
5.0915462101518E+15
Circumference
126473571.03058
Perimeter
80515576
Area
405172373663236
Diagonal
28466554.89037
Surface area
2431034241979416
Volume
8.1556717611957E+21
Space diagonal
34864267.108168
Perimeter
60386682
Area
1.75444784252E+14
Altitude
17432133.554084
Surface area
1.75444784252E+14
Volume
9.6115513457885E+20
Height
9488851.6301235