21131566 is an even 8-digits composite number following 21131565
and preceding 21131567 . In scientific notation, it is written as 2.1131566 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 10565782 positive integers (up to 21131566) that are relatively prime to 21131566.
21131566 has 4 divisors, whose sum is 31697352
The reverse of 21131566 is 66513112
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred thirty-one thousand five hundred sixty-six
Scientific notation
2.1131566 × 10^7
Engineering notation
2.1131566 × 10^6
Prime Factorization
2 × 10565783
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131566
Product of the distinct prime numbers
The prime factorization of 21131566 is 2 × 10565783.
Since it has a total of 2 prime factors.
9 , 5 , 34 , 14 , 801 , 356 , 1244 , 2263 , 37511 , 4005 , 19459 , 982419 , 8272108 , 643752 , 77965002 , 96160080 , 520501357 , 195617603 , 5428623465 , 2038072405
n×2
42263132
n×3
63394698
n×4
84526264
n×5
105657830
n÷2
10565783
n÷3
7043855.3333333
n÷3
5282891.5
n÷5
4226313.2
n2
446543081612356
n3
9.4361546009349E+21
n4
1.9940072373586E+29
n5
4.2136495540721E+36
2 √n
4596.9083088528
3 √n
276.46737829735
4 √n
67.80050375073
5 √n
29.173352292822
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
-21131565
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 21131566 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131566) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100111000100101110
3
Ternary
1110202121001121
4
Quaternary
1100213010232
5
Quinary
20402202231
6
Senary
2032531154
8
Octal
120470456
10
Decimal
21131566
12
Duodecimal
70b0aba
16
Hexadecimal
142712e
20
Vigesimal
6c18i6
36
Base36
ckx7y
md5
dd8b8210cba1525924967b35d3a0faae
sha1
3b05bcb3e8349685586f5ddd73d877bd3a6efbfa
sha256
ad16ffa51a2464361952cf69e827e690810eb8734d79afd4632f384f7d899d82
sha512
795046e26b8199875c165a458297ef0e5c708fe05aefb1b04a756ae70a0dc343074a8b19e5dbaba6a2a3d0f747992e3208588f15f4c04fb392aa64da855adb36
ripemd-160
12ab7096c47ea9ccb2d9147703371ab5eb9ecb40
Diameter
42263132
Circumference
132773545.0089
Area
1.4028564647047E+15
Volume
3.9526071963246E+22
Surface area
5.6114258588189E+15
Circumference
132773545.0089
Perimeter
84526264
Area
446543081612356
Diagonal
29884547.231382
Surface area
2679258489674136
Volume
9.4361546009349E+21
Space diagonal
36600945.955495
Perimeter
63394698
Area
1.9335882628024E+14
Altitude
18300472.977748
Surface area
1.9335882628024E+14
Volume
1.1120614844409E+21
Height
9961515.7437941