20990908 is an even 8-digits composite number following 20990907
and preceding 20990909 . In scientific notation, it is written as 2.0990908 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 10484240 positive integers (up to 20990908) that are relatively prime to 20990908.
20990908 has 12 divisors, whose sum is 36773352
The reverse of 20990908 is 80909902
Previous prime number is 4421
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million nine hundred ninety thousand nine hundred eight
Scientific notation
2.0990908 × 10^7
Engineering notation
2.0990908 × 10^6
Prime Factorization
2 × 2 × 4421 × 1187
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10495454
Product of the distinct prime numbers
The prime factorization of 20990908 is 2 × 2 × 4421 × 1187.
Since it has a total of 4 prime factors.
8 , 1 , 80 , 49 , 400 , 31 , 2866 , 1123 , 44145 , 89443 , 479825 , 574398 , 6540374 , 3983402 , 81856751 , 21332536 , 818989228 , 219556994 , 127764901 , 7071947032
n×2
41981816
n×3
62972724
n×4
83963632
n×5
104954540
n÷2
10495454
n÷3
6996969.3333333
n÷3
5247727
n÷5
4198181.6
n2
440618218664464
n3
9.2489764911096E+21
n4
1.9414441461905E+29
n5
4.0752675459822E+36
2 √n
4581.5835690294
3 √n
275.85259579754
4 √n
67.687395939195
5 √n
29.134411167676
1 , 2 , 4 , 1187 , 2374 , 4421 , 4748 , 8842 , 17684 , 5247727 , 10495454 , 20990908
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
-20990907
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 20990908 can be divided by 12 positive divisors.
The sum of these divisors (counting 20990908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000100101110111100
3
Ternary
1110111110010001
4
Quaternary
1100010232330
5
Quinary
20333202113
6
Senary
2025524044
8
Octal
120045674
10
Decimal
20990908
12
Duodecimal
7043624
16
Hexadecimal
1404bbc
20
Vigesimal
6b3h58
36
Base36
chwos
md5
5e76a7fa603fcda6c978bad11b334c92
sha1
da35da1cb39d98dc13edee86e053f02585bd1c89
sha256
4293776452661a64039fadcf2c82c7c03b3263073534122a46e48a817a124851
sha512
b8d1e34216c4b9865af36858a17dbc26dfba337a13e30f87ec1212b668f2741e543bb347e7678495cc1ce6b49fd0369aafe71eaf502af06a375a1f89fa3d36d0
ripemd-160
2b17c8be830d422fdab3ebd5cecaf7a7463cf934
Diameter
41981816
Circumference
131889764.72996
Area
1.3842429587941E+15
Volume
3.874202213026E+22
Surface area
5.5369718351764E+15
Circumference
131889764.72996
Perimeter
83963632
Area
440618218664464
Diagonal
29685626.780126
Surface area
2643709311986784
Volume
9.2489764911096E+21
Space diagonal
36357319.153004
Perimeter
62972724
Area
1.9079328536684E+14
Altitude
18178659.576502
Surface area
1.9079328536684E+14
Volume
1.0900023326498E+21
Height
9895208.9267086