20642285 is an odd 8-digits composite number following 20642284
and preceding 20642286 . In scientific notation, it is written as 2.0642285 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 16469824 positive integers (up to 20642285) that are relatively prime to 20642285.
20642285 has 8 divisors, whose sum is 24836760
The reverse of 20642285 is 58224602
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million six hundred forty-two thousand two hundred eighty-five
Scientific notation
2.0642285 × 10^7
Engineering notation
2.0642285 × 10^6
Prime Factorization
5 × 389 × 10613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20642285
Product of the distinct prime numbers
The prime factorization of 20642285 is 5 × 389 × 10613.
Since it has a total of 3 prime factors.
6 , 10 , 63 , 59 , 420 , 767 , 744 , 5992 , 19614 , 52313 , 661132 , 133342 , 5663128 , 1011958 , 79517754 , 49110884 , 598713222 , 121829523 , 1394489885 , 1421313695
n×2
41284570
n×3
61926855
n×4
82569140
n×5
103211425
n÷2
10321142.5
n÷3
6880761.6666667
n÷3
5160571.25
n÷5
4128457
n2
426103930021225
n3
8.7957587631182E+21
n4
1.8156455917953E+29
n5
3.7479073764833E+36
2 √n
4543.3781484706
3 √n
274.31691623537
4 √n
67.404585515161
5 √n
29.036987256471
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
-20642284
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 20642285 can be divided by 8 positive divisors.
The sum of these divisors (counting 20642285) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101111100111101101
3
Ternary
1102211201220002
4
Quaternary
1032233213231
5
Quinary
20241023120
6
Senary
2014234045
8
Octal
116574755
10
Decimal
20642285
12
Duodecimal
6ab5925
16
Hexadecimal
13af9ed
20
Vigesimal
6905e5
36
Base36
cafot
md5
bbc02c9f41d0a87b18757ddb10fda7e3
sha1
cc73ea8ae929377514f8fd73d2c010a784556410
sha256
f5920c9567857c98af8a7bcc36e6a9736892fb640c7cfb92f7535c678487377b
sha512
ca6c76f3e5a3f49d35de21c8429a5e6af2c08edbfde04b9433573eea30fe32e3f376f2fb78c17160676e46de03cb1af435ae5f6b199d365aa6251c9234738dbd
ripemd-160
f6feedf56fded119a7160c21b65c5e8501496e83
Diameter
41284570
Circumference
129699301.81861
Area
1.3386449762204E+15
Volume
3.6843588150614E+22
Surface area
5.3545799048817E+15
Circumference
129699301.81861
Perimeter
82569140
Area
426103930021225
Diagonal
29192599.405371
Surface area
2556623580127350
Volume
8.7957587631182E+21
Space diagonal
35753486.404317
Perimeter
61926855
Area
1.8450841402538E+14
Altitude
17876743.202158
Surface area
1.8450841402538E+14
Volume
1.0365901111803E+21
Height
9730866.4684569