20802005 is an odd 8-digits composite number following 20802004
and preceding 20802006 . In scientific notation, it is written as 2.0802005 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 13643520 positive integers (up to 20802005) that are relatively prime to 20802005.
20802005 has 8 divisors, whose sum is 22327488
The reverse of 20802005 is 50020802
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million eight hundred two thousand five
Scientific notation
2.0802005 × 10^7
Engineering notation
2.0802005 × 10^6
Prime Factorization
35 × 23 × 25841
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20802005
Product of the distinct prime numbers
The prime factorization of 20802005 is 35 × 23 × 25841.
Since it has a total of 3 prime factors.
10 , 7 , 100 , 25 , 470 , 25 , 8873 , 3303 , 24618 , 39482 , 509790 , 926003 , 288069 , 6916246 , 76582400 , 46151765 , 346619987 , 401469706 , 9124593454 , 3750772960
n×2
41604010
n×3
62406015
n×4
83208020
n×5
104010025
n÷2
10401002.5
n÷3
6934001.6666667
n÷3
5200501.25
n÷5
4160401
n2
432723412020025
n3
9.0015145804576E+21
n4
1.8724955131025E+29
n5
3.8951661026036E+36
2 √n
4560.9215077657
3 √n
275.02260971129
4 √n
67.534594895992
5 √n
29.081783652828
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
-20802004
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 20802005 can be divided by 8 positive divisors.
The sum of these divisors (counting 20802005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010110100111010101
3
Ternary
1110010211222122
4
Quaternary
1033112213111
5
Quinary
20311131010
6
Senary
2021505325
8
Octal
117264725
10
Decimal
20802005
12
Duodecimal
6b72245
16
Hexadecimal
13d69d5
20
Vigesimal
6a0505
36
Base36
cduxh
md5
42c327653fb0108bbe0eff9cda84d769
sha1
6129ab146a22768af6c48fc918ec791a8218aaec
sha256
9518f91e92e2854f64d9fc1033463db51fc1316c527460df31e352de9f86c703
sha512
7354d58c291511ad94d6f66c9ae22d8e7a85017336641dbba553ab672277bbb535f8e79ad5bed80e20be3c30a3b55c3a43cffe2118e214c604a72c7253996752
ripemd-160
710ce7d40485dc9174af8d098894a82342ea2dc5
Diameter
41604010
Circumference
130702852.17588
Area
1.3594406922384E+15
Volume
3.7705456102863E+22
Surface area
5.4377627689537E+15
Circumference
130702852.17588
Perimeter
83208020
Area
432723412020025
Diagonal
29418477.595553
Surface area
2596340472120150
Volume
9.0015145804576E+21
Space diagonal
36030129.559302
Perimeter
62406015
Area
1.8737473381081E+14
Altitude
18015064.779651
Surface area
1.8737473381081E+14
Volume
1.0608386667985E+21
Height
9806159.1985176