20990903 is an odd 8-digits composite number following 20990902
and preceding 20990904 . In scientific notation, it is written as 2.0990903 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19756128 positive integers (up to 20990903) that are relatively prime to 20990903.
20990903 has 4 divisors, whose sum is 22225680
The reverse of 20990903 is 30909902
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred ninety thousand nine hundred three
Scientific notation
2.0990903 × 10^7
Engineering notation
2.0990903 × 10^6
Prime Factorization
17 × 1234759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20990903
Product of the distinct prime numbers
The prime factorization of 20990903 is 17 × 1234759.
Since it has a total of 2 prime factors.
5 , 4 , 63 , 62 , 885 , 95 , 2300 , 476 , 75565 , 52076 , 577178 , 389819 , 7492165 , 5601813 , 81288417 , 49868298 , 437422091 , 397196918 , 7671485127 , 7657888141
n×2
41981806
n×3
62972709
n×4
83963612
n×5
104954515
n÷2
10495451.5
n÷3
6996967.6666667
n÷3
5247725.75
n÷5
4198180.6
n2
440618008755409
n3
9.2489698818379E+21
n4
1.9414422963958E+29
n5
4.0752626923742E+36
2 √n
4581.5830233665
3 √n
275.85257389499
4 √n
67.687391908438
5 √n
29.134409779722
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20990902
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20990903 can be divided by 4 positive divisors.
The sum of these divisors (counting 20990903) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100101110110111
3
Ternary
1110111110002212
4
Quaternary
1100010232313
5
Quinary
20333202103
6
Senary
2025524035
8
Octal
120045667
10
Decimal
20990903
12
Duodecimal
704361b
16
Hexadecimal
1404bb7
20
Vigesimal
6b3h53
36
Base36
chwon
md5
3d2aafa017b19fbdc52f6bcab86e9c8a
sha1
800efc21ec61043c6dbecb9fee45fc1c43be5322
sha256
f160e09a04aa883e1e7ce2e0648d03e621ac0470fb5b3f8e00e559bd6fde0306
sha512
cedfe1a5d8223f95ea4f4be3ed75e645c56fc411818a97b4ec592f6d6b39689c7b859505d7f6aa1ef01cd991958136c972ab2ba28d99b0d0e78147e00a53cabd
ripemd-160
00a3027818f0cc219d1efd85adcd27e51846e443
Diameter
41981806
Circumference
131889733.31403
Area
1.3842422993454E+15
Volume
3.8741994445407E+22
Surface area
5.5369691973814E+15
Circumference
131889733.31403
Perimeter
83963612
Area
440618008755409
Diagonal
29685619.709058
Surface area
2643708052532454
Volume
9.2489698818379E+21
Space diagonal
36357310.49275
Perimeter
62972709
Area
1.9079319447355E+14
Altitude
18178655.246375
Surface area
1.9079319447355E+14
Volume
1.0900015537396E+21
Height
9895206.569686