20905089 is an odd 8-digits composite number following 20905088
and preceding 20905090 . In scientific notation, it is written as 2.0905089 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13826736 positive integers (up to 20905089) that are relatively prime to 20905089.
20905089 has 8 divisors, whose sum is 28093440
The reverse of 20905089 is 98050902
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred five thousand eighty-nine
Scientific notation
2.0905089 × 10^7
Engineering notation
2.0905089 × 10^6
Prime Factorization
3 × 127 × 54869
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20905089
Product of the distinct prime numbers
The prime factorization of 20905089 is 3 × 127 × 54869.
Since it has a total of 3 prime factors.
8 , 4 , 3 , 30 , 572 , 596 , 5701 , 4176 , 79145 , 12976 , 685238 , 619545 , 626411 , 7611627 , 78857185 , 62912391 , 320482402 , 249251033 , 4582424203 , 3968508611
n×2
41810178
n×3
62715267
n×4
83620356
n×5
104525445
n÷2
10452544.5
n÷3
6968363
n÷3
5226272.25
n÷5
4181017.8
n2
437022746097921
n3
9.1359994022014E+21
n4
1.9098888060697E+29
n5
3.992639547099E+36
2 √n
4572.208328587
3 √n
275.4761513958
4 √n
67.618106514357
5 √n
29.110549551515
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
-20905088
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 20905089 can be divided by 8 positive divisors.
The sum of these divisors (counting 20905089) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111101111110010000001
3
Ternary
1110100002101120
4
Quaternary
1033233302001
5
Quinary
20322430324
6
Senary
2024022453
8
Octal
117576201
10
Decimal
20905089
12
Duodecimal
7001a29
16
Hexadecimal
13efc81
20
Vigesimal
6ad2e9
36
Base36
cg2gx
md5
1a770b4bdc1a06e348100cdd6c1dcb8d
sha1
5a9af9e0061aca5e54c8abf55233ef2a7d82480a
sha256
c815ef9ca9782ad307e2a8fa106cae67879af96a3c395880bcaa8ff84e3c905a
sha512
345e6f83d13c4edb07af0d09d82bbdcf7189c296c4aec597e9607a5fecd2c5cc9ef010a0ebeb3352c946108f337b010aaed9297dc2a2e3abd699a147ee10b38f
ripemd-160
a5d82a2ca9c28dcbc89b6e679ed1590481a0a9ef
Diameter
41810178
Circumference
131350548.05008
Area
1.3729474485929E+15
Volume
3.8268784806876E+22
Surface area
5.4917897943715E+15
Circumference
131350548.05008
Perimeter
83620356
Area
437022746097921
Diagonal
29564260.386417
Surface area
2622136476587526
Volume
9.1359994022014E+21
Space diagonal
36208676.284749
Perimeter
62715267
Area
1.8923640007622E+14
Altitude
18104338.142375
Surface area
1.8923640007622E+14
Volume
1.0766878550355E+21
Height
9854753.4621389