21131889 is an odd 8-digits composite number following 21131888
and preceding 21131890 . In scientific notation, it is written as 2.1131889 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 14068896 positive integers (up to 21131889) that are relatively prime to 21131889.
21131889 has 8 divisors, whose sum is 28213920
The reverse of 21131889 is 98813112
Previous prime number is 809
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million one hundred thirty-one thousand eight hundred eighty-nine
Scientific notation
2.1131889 × 10^7
Engineering notation
2.1131889 × 10^6
Prime Factorization
3 × 809 × 8707
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131889
Product of the distinct prime numbers
The prime factorization of 21131889 is 3 × 809 × 8707.
Since it has a total of 3 prime factors.
9 , 6 , 91 , 75 , 768 , 285 , 6569 , 1463 , 77419 , 25357 , 755102 , 143036 , 3779734 , 978308 , 77607577 , 93031715 , 224322701 , 867167813 , 9623100282 , 738544018
n×2
42263778
n×3
63395667
n×4
84527556
n×5
105659445
n÷2
10565944.5
n÷3
7043963
n÷3
5282972.25
n÷5
4226377.8
n2
446556732708321
n3
9.4365873077949E+21
n4
1.9941291552713E+29
n5
4.2139715960857E+36
2 √n
4596.9434410269
3 √n
276.46878690897
4 √n
67.80076283514
5 √n
29.173441476323
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
-21131888
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 21131889 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111001001110001
3
Ternary
1110202121111120
4
Quaternary
1100213021301
5
Quinary
20402210024
6
Senary
2032532453
8
Octal
120471161
10
Decimal
21131889
12
Duodecimal
70b1129
16
Hexadecimal
1427271
20
Vigesimal
6c19e9
36
Base36
ckxgx
md5
d2da5db98903d3f1e964b35de43ee762
sha1
f1f2484fc226d518646cc035d814878987d38030
sha256
d21cb27ecf438e1dbc6265d2b15a92993ef930a6d3fa1fe0051959c96715dc05
sha512
a0fefd6d645c3ce9ce19aa33b67eaca313a69eb6c8ca95a3c0ee17a00add55fd82869e3aa73b31f9df6b60465bae6bfe2f03b2932b3abbf91df354cde98ed8e2
ripemd-160
c916fd847627431a3a84696c715804c088fb5f84
Diameter
42263778
Circumference
132775574.47775
Area
1.4028993508875E+15
Volume
3.9527884481503E+22
Surface area
5.6115974035501E+15
Circumference
132775574.47775
Perimeter
84527556
Area
446556732708321
Diagonal
29885004.022363
Surface area
2679340396249926
Volume
9.4365873077949E+21
Space diagonal
36601505.407906
Perimeter
63395667
Area
1.9336473737819E+14
Altitude
18300752.703953
Surface area
1.9336473737819E+14
Volume
1.1121124794334E+21
Height
9961668.0074543