21568685 is an odd 8-digits composite number following 21568684
and preceding 21568686 . In scientific notation, it is written as 2.1568685 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 16971840 positive integers (up to 21568685) that are relatively prime to 21568685.
21568685 has 8 divisors, whose sum is 26307096
The reverse of 21568685 is 58686512
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million five hundred sixty-eight thousand six hundred eighty-five
Scientific notation
2.1568685 × 10^7
Engineering notation
2.1568685 × 10^6
Prime Factorization
5 × 61 × 70717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21568685
Product of the distinct prime numbers
The prime factorization of 21568685 is 5 × 61 × 70717.
Since it has a total of 3 prime factors.
6 , 7 , 6 , 15 , 199 , 90 , 3512 , 5064 , 39706 , 39987 , 84104 , 404001 , 9549170 , 1453495 , 87095780 , 89028052 , 109622523 , 996512019 , 6539865684 , 6020156318
n×2
43137370
n×3
64706055
n×4
86274740
n×5
107843425
n÷2
10784342.5
n÷3
7189561.6666667
n÷3
5392171.25
n÷5
4313737
n2
465208172629225
n3
1.0033928534865E+22
n4
2.1641864388102E+29
n5
4.667865557997E+36
2 √n
4644.209835914
3 √n
278.36068033816
4 √n
68.148439717384
5 √n
29.2930594886
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
-21568684
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 21568685 can be divided by 8 positive divisors.
The sum of these divisors (counting 21568685) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010010001110010101101
3
Ternary
1111120210200012
4
Quaternary
1102101302231
5
Quinary
21010144220
6
Senary
2050143005
8
Octal
122216255
10
Decimal
21568685
12
Duodecimal
7281a65
16
Hexadecimal
1491cad
20
Vigesimal
6eg1e5
36
Base36
cuai5
md5
eb392e93495a9f3ccaff5e5ea1402e42
sha1
371a20ed2f45fcd8e654b9a38fdba78013534fe7
sha256
4c11f9c0e33f15732acb8b88d1da0717b14e77174a4a9c4e650967fc2b2a6e8a
sha512
e203d96cb9452731172772ec7f47e7a4a22649399e485d582619604e13429129b9326fc03f5172e7ad4a30950542cf1203c2fa0ff1db1dc2f4c46d771bac710d
ripemd-160
69bd30a2adfcf064432fd7b9741ee6a5fe1a08b4
Diameter
43137370
Circumference
135520044.68718
Area
1.4614945775219E+15
Volume
4.2030021562371E+22
Surface area
5.8459783100876E+15
Circumference
135520044.68718
Perimeter
86274740
Area
465208172629225
Diagonal
30502726.849553
Surface area
2791249035775350
Volume
1.0033928534865E+22
Space diagonal
37358058.272449
Perimeter
64706055
Area
2.0144104777252E+14
Altitude
18679029.136224
Surface area
2.0144104777252E+14
Volume
1.1825098181574E+21
Height
10167575.616518