20908855 is an odd 8-digits composite number following 20908854
and preceding 20908856 . In scientific notation, it is written as 2.0908855 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 14680960 positive integers (up to 20908855) that are relatively prime to 20908855.
20908855 has 16 divisors, whose sum is 28317600
The reverse of 20908855 is 55880902
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million nine hundred eight thousand eight hundred fifty-five
Scientific notation
2.0908855 × 10^7
Engineering notation
2.0908855 × 10^6
Prime Factorization
5 × 11 × 29 × 13109
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20908855
Product of the distinct prime numbers
The prime factorization of 20908855 is 5 × 11 × 29 × 13109.
Since it has a total of 4 prime factors.
1 , 5 , 15 , 73 , 73 , 715 , 4482 , 7227 , 37795 , 2314 , 139424 , 131728 , 7766767 , 5584594 , 20918508 , 99322356 , 873337218 , 375428502 , 9807305361 , 5355552048
n×2
41817710
n×3
62726565
n×4
83635420
n×5
104544275
n÷2
10454427.5
n÷3
6969618.3333333
n÷3
5227213.75
n÷5
4181771
n2
437180217411025
n3
9.1409377747156E+21
n4
1.9112654249555E+29
n5
3.9962371636908E+36
2 √n
4572.6201460432
3 √n
275.49269251799
4 √n
67.621151617251
5 √n
29.111598314624
1 , 5 , 11 , 29 , 55 , 145 , 319 , 1595 , 13109 , 65545 , 144199 , 380161 , 720995 , 1900805 , 4181771 , 20908855
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20908854
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20908855 can be divided by 16 positive divisors.
The sum of these divisors (counting 20908855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110000101100110111
3
Ternary
1110100021120001
4
Quaternary
1033300230313
5
Quinary
20323040410
6
Senary
2024052131
8
Octal
117605467
10
Decimal
20908855
12
Duodecimal
7004047
16
Hexadecimal
13f0b37
20
Vigesimal
6adc2f
36
Base36
cg5dj
md5
b759bbf72f57b49cd3b50deb168530d6
sha1
1a492b6f385e5e2336c9aba7e6000172a40058c8
sha256
813de28794b7ff637ccc359101f441139c41b426a849839568ea438b1a55ace4
sha512
09c22de4c280bbcfb81cfed90ad5ecbb81c9d3e148c24a4b94aa308c4984ccf91db76a3dc9da792d527a29676c0440a27dcbde02711051d43c33f91d19dd894a
ripemd-160
c408974824a6182b507a1f5091c50090fa1ed421
Diameter
41817710
Circumference
131374210.52595
Area
1.3734421593133E+15
Volume
3.8289470613291E+22
Surface area
5.4937686372531E+15
Circumference
131374210.52595
Perimeter
83635420
Area
437180217411025
Diagonal
29569586.314693
Surface area
2623081304466150
Volume
9.1409377747156E+21
Space diagonal
36215199.188091
Perimeter
62726565
Area
1.8930458715498E+14
Altitude
18107599.594045
Surface area
1.8930458715498E+14
Volume
1.0772698478176E+21
Height
9856528.7715642