20290905 is an odd 8-digits composite number following 20290904
and preceding 20290906 . In scientific notation, it is written as 2.0290905 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 10821600 positive integers (up to 20290905) that are relatively prime to 20290905.
20290905 has 12 divisors, whose sum is 27355692
The reverse of 20290905 is 50909202
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million two hundred ninety thousand nine hundred five
Scientific notation
2.0290905 × 10^7
Engineering notation
2.0290905 × 10^6
Prime Factorization
9 × 9 × 5 × 50101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2254545
Product of the distinct prime numbers
The prime factorization of 20290905 is 9 × 9 × 5 × 50101.
Since it has a total of 4 prime factors.
6 , 10 , 36 , 4 , 885 , 601 , 2796 , 5527 , 14247 , 46602 , 898480 , 449716 , 4915484 , 9699406 , 67323952 , 16207654 , 639179923 , 258834946 , 7176463965 , 4372060245
n×2
40581810
n×3
60872715
n×4
81163620
n×5
101454525
n÷2
10145452.5
n÷3
6763635
n÷3
5072726.25
n÷5
4058181
n2
411720825719025
n3
8.3541881611863E+21
n4
1.6951403833076E+29
n5
3.4395932479357E+36
2 √n
4504.5427070903
3 √n
272.75149466688
4 √n
67.115890123653
5 √n
28.937451702357
1 , 5 , 9 , 45 , 81 , 405 , 50101 , 250505 , 450909 , 2254545 , 4058181 , 20290905
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20290904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20290905 can be divided by 12 positive divisors.
The sum of these divisors (counting 20290905) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101011001110101011001
3
Ternary
1102011212220000
4
Quaternary
1031121311121
5
Quinary
20143302110
6
Senary
2002523213
8
Octal
115316531
10
Decimal
20290905
12
Duodecimal
6966509
16
Hexadecimal
1359d59
20
Vigesimal
66g755
36
Base36
c2wk9
md5
a4b6aa3999f69b3dc0c25363baf8a598
sha1
61719a2ab2e30b667f0d181d0a0ab8be6a09b339
sha256
641338cf4eaeca1705bb80e662ed886fe70678dbd886e126829183d9228d87ec
sha512
31f67781982cba157446a759c6932ec3d2b272e81266e0e2c1a524d03516e96467c7e6b92da16a4943f92d84892b1b1d95335191c1e0858f19fb5b4dda0afa6a
ripemd-160
07fd74951568e06543c80256030d9299f062cdc0
Diameter
40581810
Circumference
127491516.16538
Area
1.2934591214088E+15
Volume
3.499394153852E+22
Surface area
5.1738364856352E+15
Circumference
127491516.16538
Perimeter
81163620
Area
411720825719025
Diagonal
28695673.043824
Surface area
2470324954314150
Volume
8.3541881611863E+21
Space diagonal
35144878.391553
Perimeter
60872715
Area
1.7828034716989E+14
Altitude
17572439.195777
Surface area
1.7828034716989E+14
Volume
9.8455051668053E+20
Height
9565224.3479414