21568231 is an odd 8-digits composite number following 21568230
and preceding 21568232 . In scientific notation, it is written as 2.1568231 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21558600 positive integers (up to 21568231) that are relatively prime to 21568231.
21568231 has 4 divisors, whose sum is 21577864
The reverse of 21568231 is 13286512
Previous prime number is 3541
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred sixty-eight thousand two hundred thirty-one
Scientific notation
2.1568231 × 10^7
Engineering notation
2.1568231 × 10^6
Prime Factorization
3541 × 6091
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21568231
Product of the distinct prime numbers
The prime factorization of 21568231 is 3541 × 6091.
Since it has a total of 2 prime factors.
7 , 8 , 25 , 28 , 661 , 892 , 7770 , 1562 , 12227 , 46747 , 68815 , 209945 , 7158768 , 3750766 , 84463147 , 62418541 , 637630085 , 736072713 , 3874539851 , 5446321960
n×2
43136462
n×3
64704693
n×4
86272924
n×5
107841155
n÷2
10784115.5
n÷3
7189410.3333333
n÷3
5392057.75
n÷5
4313646.2
n2
465188588469361
n3
1.0033294934671E+22
n4
2.1640042284212E+29
n5
4.6673743083564E+36
2 √n
4644.1609575896
3 √n
278.35872724991
4 √n
68.148081099835
5 √n
29.292936169437
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
-21568230
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 21568231 can be divided by 4 positive divisors.
The sum of these divisors (counting 21568231) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010010001101011100111
3
Ternary
1111120210001101
4
Quaternary
1102101223213
5
Quinary
21010140411
6
Senary
2050140531
8
Octal
122215347
10
Decimal
21568231
12
Duodecimal
7281747
16
Hexadecimal
1491ae7
20
Vigesimal
6eg0bb
36
Base36
cua5j
md5
38ef8694ae7705a8ab8803161ad347f5
sha1
2473853c2f36727cfcb5e6523c2011491325a22e
sha256
94ec474c3b98c8332ac2e31865fb12216e526a6ae0006832d595b0ec59252c2d
sha512
c07a15e0960339c23eaff2c64024e6ea279e475a35d8017338dd328cf937dc406e2d07db561d1df5432430aadc6266817618a356b5456e16f596ce7684ac4413
ripemd-160
326b5c5c75aaa8842ef3dcb92e7b0f240fb7d4d7
Diameter
43136462
Circumference
135517192.12106
Area
1.4614330520692E+15
Volume
4.2027367544083E+22
Surface area
5.8457322082766E+15
Circumference
135517192.12106
Perimeter
86272924
Area
465188588469361
Diagonal
30502084.796596
Surface area
2791131530816166
Volume
1.0033294934671E+22
Space diagonal
37357271.921382
Perimeter
64704693
Area
2.0143256758255E+14
Altitude
18678635.960691
Surface area
2.0143256758255E+14
Volume
1.1824351476584E+21
Height
10167361.598865