20215908 is an even 8-digits composite number following 20215907
and preceding 20215909 . In scientific notation, it is written as 2.0215908 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 18 positive divisors.
There are 6738624 positive integers (up to 20215908) that are relatively prime to 20215908.
20215908 has 18 divisors, whose sum is 51101414
The reverse of 20215908 is 80951202
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million two hundred fifteen thousand nine hundred eight
Scientific notation
2.0215908 × 10^7
Engineering notation
2.0215908 × 10^6
Prime Factorization
2 × 2 × 3 × 3 × 561553
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3369318
Product of the distinct prime numbers
The prime factorization of 20215908 is 2 × 2 × 3 × 3 × 561553.
Since it has a total of 5 prime factors.
7 , 6 , 76 , 54 , 87 , 742 , 3534 , 1709 , 50444 , 23033 , 182755 , 399272 , 4443985 , 399087 , 30911930 , 14432812 , 934809517 , 534480266 , 7816699784 , 4674152417
n×2
40431816
n×3
60647724
n×4
80863632
n×5
101079540
n÷2
10107954
n÷3
6738636
n÷3
5053977
n÷5
4043181.6
n2
408682936264464
n3
8.2618966406923E+21
n4
1.6702174239374E+29
n5
3.3764961782316E+36
2 √n
4496.2104043294
3 √n
272.41504183144
4 √n
67.053787397353
5 √n
28.916028924682
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 , 561553 , 1123106 , 1684659 , 2246212 , 3369318 , 5053977 , 6738636 , 10107954 , 20215908
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20215907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20215908 can be divided by 18 positive divisors.
The sum of these divisors (counting 20215908) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1001101000111100001100100
3
Ternary
1102001002000100
4
Quaternary
1031013201210
5
Quinary
20133402113
6
Senary
2001144100
8
Octal
115074144
10
Decimal
20215908
12
Duodecimal
692b030
16
Hexadecimal
1347864
20
Vigesimal
666jf8
36
Base36
c1ap0
md5
2841758fcd0f0aa867e3c69faba0472e
sha1
9a0ae2dc5aff87149d6c1acfbb70b92ddfef980e
sha256
9f98ee72a662e538e40bcf6243e57444831527331030d1d7bf9e831b35f45b65
sha512
51a50074f4cc34928377f3ae10812187ac9314a6e3b3a805e3ebe3771ba57ee4c6dc1f8d0a59f7ada5e036255ce8570ae730b50b84cd40e7b60eca5761f14705
ripemd-160
c5cb354a55e9f313b733a264fd4559c3b98dff3e
Diameter
40431816
Circumference
127020296.11689
Area
1.2839153102159E+15
Volume
3.4607351721489E+22
Surface area
5.1356612408638E+15
Circumference
127020296.11689
Perimeter
80863632
Area
408682936264464
Diagonal
28589611.269287
Surface area
2452097617586784
Volume
8.2618966406923E+21
Space diagonal
35014979.777138
Perimeter
60647724
Area
1.7696490244912E+14
Altitude
17507489.888569
Surface area
1.7696490244912E+14
Volume
9.7367385668264E+20
Height
9529870.4230956