20557 is an odd 5-digits composite number following 20556
and preceding 20558 . In scientific notation, it is written as 2.0557 × 10^4.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20160 positive integers (up to 20557) that are relatively prime to 20557.
20557 has 4 divisors, whose sum is 20956
The reverse of 20557 is 75502
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 19
Digital Root 1
Name
twenty thousand five hundred fifty-seven
Scientific notation
2.0557 × 10^4
Engineering notation
2.0557 × 10^3
Prime Factorization
61 × 337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20557
Product of the distinct prime numbers
The prime factorization of 20557 is 61 × 337.
Since it has a total of 2 prime factors.
2 , 4 , 10 , 14 , 570 , 568 , 8771 , 8098 , 8182 , 50482 , 268102 , 384881 , 3921199 , 3489336 , 99560600 , 81503334 , 45820884 , 328606443 , 4454962688 , 500751859
n×2
41114
n×3
61671
n×4
82228
n×5
102785
n÷2
10278.5
n÷3
6852.3333333333
n÷3
5139.25
n÷5
4111.4
n2
422590249
n3
8687187748693
n4
178582518549882001
n5
3.6711208338299E+21
2 √n
143.37712509323
3 √n
27.393860844201
4 √n
11.974018752834
5 √n
7.2877245111361
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
-20556
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 20557 can be divided by 4 positive divisors.
The sum of these divisors (counting 20557) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000001001101
3
Ternary
1001012101
4
Quaternary
11001031
5
Quinary
1124212
6
Senary
235101
8
Octal
50115
10
Decimal
20557
12
Duodecimal
ba91
16
Hexadecimal
504d
20
Vigesimal
2b7h
36
Base36
fv1
md5
2478f263ea867250ce8fcbfd57c06fe4
sha1
7ce32d7cd72bee0b8f919fce5c60d0445193e5b2
sha256
367cfa3ebdbbf8a41b0b4d57d213d82c96f1bbd95c9074a8aef33e7782eb456c
sha512
e5baf530a91b277b3fdcc1679038a1879dc5499a301233cbcf1b727d175e133283156ab11be6d32355595453d123b84fde35e1caa70e801753e40225b11a7dab
ripemd-160
01513f41af7e6a752718426f99be8df238aa75ad
Diameter
41114
Circumference
129163.44035969
Area
1327606421.7371
Volume
36388806948866
Surface area
5310425686.9483
Circumference
129163.44035969
Perimeter
82228
Area
422590249
Diagonal
29071.988201704
Surface area
2535541494
Volume
8687187748693
Space diagonal
35605.768451193
Perimeter
61671
Area
182986945.5128
Altitude
17802.884225597
Surface area
182986945.5128
Volume
1023794894423.6
Height
9690.6627339012