21931437 is an odd 8-digits composite number following 21931436
and preceding 21931438 . In scientific notation, it is written as 2.1931437 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13291760 positive integers (up to 21931437) that are relatively prime to 21931437.
21931437 has 8 divisors, whose sum is 31900320
The reverse of 21931437 is 73413912
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million nine hundred thirty-one thousand four hundred thirty-seven
Scientific notation
2.1931437 × 10^7
Engineering notation
2.1931437 × 10^6
Prime Factorization
3 × 11 × 664589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21931437
Product of the distinct prime numbers
The prime factorization of 21931437 is 3 × 11 × 664589.
Since it has a total of 3 prime factors.
3 , 1 , 68 , 70 , 474 , 790 , 8651 , 1330 , 81036 , 40001 , 794697 , 365537 , 797732 , 8061175 , 68583669 , 95356582 , 842270840 , 399953482 , 5912990592 , 4054022938
n×2
43862874
n×3
65794311
n×4
87725748
n×5
109657185
n÷2
10965718.5
n÷3
7310479
n÷3
5482859.25
n÷5
4386287.4
n2
480987928884969
n3
1.0548756460101E+22
n4
2.3134938773305E+29
n5
5.073824522056E+36
2 √n
4683.1012160747
3 √n
279.9125449661
4 √n
68.433187972465
5 √n
29.390936043902
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
-21931436
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 21931437 can be divided by 8 positive divisors.
The sum of these divisors (counting 21931437) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011101010010110101101
3
Ternary
1112021020021110
4
Quaternary
1103222112231
5
Quinary
21103301222
6
Senary
2102022233
8
Octal
123522655
10
Decimal
21931437
12
Duodecimal
7417979
16
Hexadecimal
14ea5ad
20
Vigesimal
6h18bh
36
Base36
d22el
md5
9b6fc0afd2b7d144d941d1fd41612b76
sha1
6f00323991e5286fc71f60b8f5076a61706cc7c7
sha256
7f8a3e3f3308f15de923c98dc3b383536a52dd8ac5003388eb5a6c4fb640de3b
sha512
69457e2049912ba62194024292a0d5a36e395ded1210ed4f93b80b3e57349704177de0360b86859b3b258fa83294af9f94c035bd04d32b66dc46a6b01865795f
ripemd-160
1402293db28be428406eeb30d1b13ec680e18871
Diameter
43862874
Circumference
137799282.72373
Area
1.5110681438504E+15
Volume
4.4186527732749E+22
Surface area
6.0442725754016E+15
Circumference
137799282.72373
Perimeter
87725748
Area
480987928884969
Diagonal
31015735.647731
Surface area
2885927573309814
Volume
1.0548756460101E+22
Space diagonal
37986363.166996
Perimeter
65794311
Area
2.0827388266402E+14
Altitude
18993181.583498
Surface area
2.0827388266402E+14
Volume
1.2431828710038E+21
Height
10338578.549244