20080905 is an odd 8-digits composite number following 20080904
and preceding 20080906 . In scientific notation, it is written as 2.0080905 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 9225216 positive integers (up to 20080905) that are relatively prime to 20080905.
20080905 has 32 divisors, whose sum is 24675840
The reverse of 20080905 is 50908002
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million eighty thousand nine hundred five
Scientific notation
2.0080905 × 10^7
Engineering notation
2.0080905 × 10^6
Prime Factorization
15 × 13 × 29 × 53 × 67
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20080905
Product of the distinct prime numbers
The prime factorization of 20080905 is 15 × 13 × 29 × 53 × 67.
Since it has a total of 5 prime factors.
8 , 8 , 26 , 51 , 761 , 384 , 826 , 2436 , 89707 , 34751 , 58187 , 673635 , 368507 , 9128257 , 3132610 , 27425308 , 433671138 , 411042420 , 2683830841 , 9800153885
n×2
40161810
n×3
60242715
n×4
80323620
n×5
100404525
n÷2
10040452.5
n÷3
6693635
n÷3
5020226.25
n÷5
4016181
n2
403242745619025
n3
8.0974792667148E+21
n4
1.6260471189437E+29
n5
3.2652497721032E+36
2 √n
4481.1722796608
3 √n
271.80728581825
4 √n
66.941558688611
5 √n
28.877304763289
1 , 13 , 15 , 29 , 53 , 67 , 195 , 377 , 435 , 689 , 795 , 871 , 1005 , 1537 , 1943 , 3551 , 5655 , 10335 , 13065 , 19981 , 23055 , 25259 , 29145 , 46163 , 53265 , 102979 , 299715 , 378885 , 692445 , 1338727 , 1544685 , 20080905
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20080904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20080905 can be divided by 32 positive divisors.
The sum of these divisors (counting 20080905) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100100110100100001001
3
Ternary
1101210012211020
4
Quaternary
1030212210021
5
Quinary
20120042110
6
Senary
1554223053
8
Octal
114464411
10
Decimal
20080905
12
Duodecimal
6884a89
16
Hexadecimal
1326909
20
Vigesimal
65a255
36
Base36
byeix
md5
0bec3f26dad587db786a09eff4bd98ad
sha1
165a2a756fd882d7220b57001b670d7ec2333ed8
sha256
689e03cd043f9e54f85c8c9889d638764a2fb52fd10e4ff0a2c2191f5379261b
sha512
337d6f84e27438366a0ff2a152b583b35d66248b07e10f9d0ee43e5b23ca45fd6ded2e89f75dfdbc3c4203584ddb262efd912a0b9ed350cd8c6cb39901788191
ripemd-160
589b97798521eae10a3d26cc3dd4b06914c95f75
Diameter
40161810
Circumference
126172047.25087
Area
1.2668244472501E+15
Volume
3.3918641835876E+22
Surface area
5.0672977890004E+15
Circumference
126172047.25087
Perimeter
80323620
Area
403242745619025
Diagonal
28398688.195726
Surface area
2419456473714150
Volume
8.0974792667148E+21
Space diagonal
34781147.721964
Perimeter
60242715
Area
1.7460923079893E+14
Altitude
17390573.860982
Surface area
1.7460923079893E+14
Volume
9.5429708333525E+20
Height
9466229.3985752