21131131 is an odd 8-digits composite number following 21131130
and preceding 21131132 . In scientific notation, it is written as 2.1131131 × 10^7.
The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors.
There are 18112392 positive integers (up to 21131131) that are relatively prime to 21131131.
21131131 has 4 divisors, whose sum is 24149872
The reverse of 21131131 is 13113112
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million one hundred thirty-one thousand one hundred thirty-one
Scientific notation
2.1131131 × 10^7
Engineering notation
2.1131131 × 10^6
Prime Factorization
7 × 3018733
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131131
Product of the distinct prime numbers
The prime factorization of 21131131 is 7 × 3018733.
Since it has a total of 2 prime factors.
8 , 3 , 47 , 92 , 843 , 797 , 1418 , 7703 , 24455 , 92156 , 666291 , 495969 , 134181 , 56019 , 94273702 , 95575364 , 184684434 , 255324734 , 7939088448 , 5027225819
n×2
42262262
n×3
63393393
n×4
84524524
n×5
105655655
n÷2
10565565.5
n÷3
7043710.3333333
n÷3
5282782.75
n÷5
4226226.2
n2
446524697339161
n3
9.4355718742092E+21
n4
1.9938430533383E+29
n5
4.2132158753531E+36
2 √n
4596.8609942003
3 √n
276.46548122806
4 √n
67.800154824309
5 √n
29.173232183288
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131130
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131131 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110111101111011
3
Ternary
1110202120110111
4
Quaternary
1100212331323
5
Quinary
20402144011
6
Senary
2032525151
8
Octal
120467573
10
Decimal
21131131
12
Duodecimal
70b07b7
16
Hexadecimal
1426f7b
20
Vigesimal
6c17gb
36
Base36
ckwvv
md5
aacd2b98c9152035ee4ddc905585cf54
sha1
f55346d284eaa0e1bc256886e77b848e9eae9324
sha256
a038fda9265136da5d2860f5bfcaf6281dbf8f857a77a558bb044fd4f9c1d06b
sha512
c2af34dc23c62dadbc8453bb1dbe63a2e85250325bd10c492e4a438e41c519e9110016597324430f4933ad4e96bd5dfde24cda9f037ffc90c42090d723b8f80a
ripemd-160
fc9eba0340e7d2934897032bc376e1f9cd8bbd23
Diameter
42262262
Circumference
132770811.82329
Area
1.4027987088071E+15
Volume
3.9523631043245E+22
Surface area
5.6111948352285E+15
Circumference
132770811.82329
Perimeter
84524524
Area
446524697339161
Diagonal
29883932.048483
Surface area
2679148184034966
Volume
9.4355718742092E+21
Space diagonal
36600192.513394
Perimeter
63393393
Area
1.9335086565644E+14
Altitude
18300096.256697
Surface area
1.9335086565644E+14
Volume
1.1119928094377E+21
Height
9961310.6828275