20642015 is an odd 8-digits composite number following 20642014
and preceding 20642016 . In scientific notation, it is written as 2.0642015 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 16470432 positive integers (up to 20642015) that are relatively prime to 20642015.
20642015 has 8 divisors, whose sum is 24835200
The reverse of 20642015 is 51024602
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million six hundred forty-two thousand fifteen
Scientific notation
2.0642015 × 10^7
Engineering notation
2.0642015 × 10^6
Prime Factorization
5 × 397 × 10399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20642015
Product of the distinct prime numbers
The prime factorization of 20642015 is 5 × 397 × 10399.
Since it has a total of 3 prime factors.
8 , 5 , 37 , 95 , 339 , 744 , 4829 , 9715 , 64477 , 7451 , 564637 , 548879 , 5066924 , 8007513 , 18817859 , 3299669 , 512570102 , 267814595 , 4988859459 , 5687214919
n×2
41284030
n×3
61926045
n×4
82568060
n×5
103210075
n÷2
10321007.5
n÷3
6880671.6666667
n÷3
5160503.75
n÷5
4128403
n2
426092783260225
n3
8.7954136234493E+21
n4
1.8155505994645E+29
n5
3.7476622707404E+36
2 √n
4543.3484348
3 √n
274.31572021322
4 √n
67.404365101973
5 √n
29.036911295621
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
-20642014
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 20642015 can be divided by 8 positive divisors.
The sum of these divisors (counting 20642015) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101111100011011111
3
Ternary
1102211201112002
4
Quaternary
1032233203133
5
Quinary
20241021030
6
Senary
2014232515
8
Octal
116574337
10
Decimal
20642015
12
Duodecimal
6ab573b
16
Hexadecimal
13af8df
20
Vigesimal
69050f
36
Base36
cafhb
md5
d000a639cf4d297e6592ad6bae7fb4ba
sha1
62da2ab31ca03510a95caa4389bf6ca1d6066784
sha256
51deb2811537d85ebd0c8c928686e43d6a4f5f3d7720415d06433e721cf40a37
sha512
3dd0b4adba7ead21375ad724625110967be23e13feeef7004f772ce3dd9d8d52621b39d3f85e5c6c22d2cc7f7edc6b9cc85c50d1a511ded63ca22ed8d93c2bcc
ripemd-160
988b0ca1519a53fccef426827b5f9ce18cf24479
Diameter
41284030
Circumference
129697605.35858
Area
1.338609957638E+15
Volume
3.6842142432949E+22
Surface area
5.3544398305518E+15
Circumference
129697605.35858
Perimeter
82568060
Area
426092783260225
Diagonal
29192217.567709
Surface area
2556556699561350
Volume
8.7954136234493E+21
Space diagonal
35753018.750599
Perimeter
61926045
Area
1.8450358733629E+14
Altitude
17876509.375299
Surface area
1.8450358733629E+14
Volume
1.0365494360803E+21
Height
9730739.1892363