20989839 is an odd 8-digits composite number following 20989838
and preceding 20989840 . In scientific notation, it is written as 2.0989839 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 12916800 positive integers (up to 20989839) that are relatively prime to 20989839.
20989839 has 8 divisors, whose sum is 30139312
The reverse of 20989839 is 93898902
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty million nine hundred eighty-nine thousand eight hundred thirty-nine
Scientific notation
2.0989839 × 10^7
Engineering notation
2.0989839 × 10^6
Prime Factorization
3 × 13 × 538201
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20989839
Product of the distinct prime numbers
The prime factorization of 20989839 is 3 × 13 × 538201.
Since it has a total of 3 prime factors.
1 , 9 , 54 , 7 , 3 , 709 , 1343 , 4833 , 85193 , 19045 , 275930 , 270930 , 4662355 , 7947709 , 58006819 , 28438564 , 875273553 , 974721952 , 219320911 , 2805345405
n×2
41979678
n×3
62969517
n×4
83959356
n×5
104949195
n÷2
10494919.5
n÷3
6996613
n÷3
5247459.75
n÷5
4197967.8
n2
440573341245921
n3
9.2475635004439E+21
n4
1.9410486901659E+29
n5
4.0742299497744E+36
2 √n
4581.4669048243
3 √n
275.84791295373
4 √n
67.686534146935
5 √n
29.134114417102
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20989838
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20989839 can be divided by 8 positive divisors.
The sum of these divisors (counting 20989839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100011110001111
3
Ternary
1110111101122110
4
Quaternary
1100010132033
5
Quinary
20333133324
6
Senary
2025515103
8
Octal
120043617
10
Decimal
20989839
12
Duodecimal
7042a93
16
Hexadecimal
140478f
20
Vigesimal
6b3ebj
36
Base36
chvv3
md5
f6ad4b922711c5e17b8ba826a77c81a9
sha1
3d462723d59ea8d1efb2af5adb9f7934752bfb7b
sha256
1bee26759e7325ee21a16225ca873915629de6bf6f96d07836a1af7057bebfe9
sha512
4016f864732d1e854c5e31b75921cb9647bb45ecd81af60052fdf4ba4b3489b98b3ea1d65ec08fc43a382db46065661b14f53861e96706bc6bda89314042955f
ripemd-160
d6d3010f98bd28fdd52ff4793db3d764d6c367b7
Diameter
41979678
Circumference
131883048.00487
Area
1.3841019722257E+15
Volume
3.87361034088E+22
Surface area
5.5364078889028E+15
Circumference
131883048.00487
Perimeter
83959356
Area
440573341245921
Diagonal
29684114.985828
Surface area
2643440047475526
Volume
9.2475635004439E+21
Space diagonal
36355467.590691
Perimeter
62969517
Area
1.9077385287458E+14
Altitude
18177733.795345
Surface area
1.9077385287458E+14
Volume
1.0898358101029E+21
Height
9894704.9952759