20122891 is an odd 8-digits composite number following 20122890
and preceding 20122892 . In scientific notation, it is written as 2.0122891 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 19687080 positive integers (up to 20122891) that are relatively prime to 20122891.
20122891 has 8 divisors, whose sum is 20563200
The reverse of 20122891 is 19822102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-two thousand eight hundred ninety-one
Scientific notation
2.0122891 × 10^7
Engineering notation
2.0122891 × 10^6
Prime Factorization
2039 × 139 × 71
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20122891
Product of the distinct prime numbers
The prime factorization of 20122891 is 2039 × 139 × 71.
Since it has a total of 3 prime factors.
5 , 10 , 54 , 29 , 288 , 4 , 5600 , 302 , 35573 , 95343 , 917048 , 23312 , 5756667 , 5754548 , 50462116 , 81442526 , 822847904 , 650855403 , 1193209864 , 4659614252
n×2
40245782
n×3
60368673
n×4
80491564
n×5
100614455
n÷2
10061445.5
n÷3
6707630.3333333
n÷3
5030722.75
n÷5
4024578.2
n2
404930742197881
n3
8.1483771877971E+21
n4
1.6396890597693E+29
n5
3.2995284223629E+36
2 √n
4485.8545451229
3 √n
271.99658930989
4 √n
66.976522342705
5 √n
28.889370253143
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
-20122890
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 20122891 can be divided by 8 positive divisors.
The sum of these divisors (counting 20122891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000110100001011
3
Ternary
1101212100102021
4
Quaternary
1030300310023
5
Quinary
20122413031
6
Senary
1555145311
8
Octal
114606413
10
Decimal
20122891
12
Duodecimal
68a5237
16
Hexadecimal
1330d0b
20
Vigesimal
65f74b
36
Base36
bzax7
md5
b05ac87673da7b779f3997f3a9bff493
sha1
fb9a040d94e1d2d4f2c15e8c1bbe0b1f8d92fe1a
sha256
5fed08d9d53596a848bb0e758173c0b5cb71573f56c8b65878c64c4e257c8731
sha512
b199f73e5bd582caef3ed890497034b9beda24fbbd9f964cb3cce856b61291e60bfc62ecf866a7d59c21a50b875f704877851421d59ce276e7a96644c29d2990
ripemd-160
a76412ce4b8c50a59085bf400804cde683280292
Diameter
40245782
Circumference
126435853.06918
Area
1.2721274449015E+15
Volume
3.4131842549149E+22
Surface area
5.0885097796061E+15
Circumference
126435853.06918
Perimeter
80491564
Area
404930742197881
Diagonal
28458065.366355
Surface area
2429584453187286
Volume
8.1483771877971E+21
Space diagonal
34853869.60717
Perimeter
60368673
Area
1.7534015475833E+14
Altitude
17426934.803585
Surface area
1.7534015475833E+14
Volume
9.6029546085951E+20
Height
9486021.7887852