20621889 is an odd 8-digits composite number following 20621888
and preceding 20621890 . In scientific notation, it is written as 2.0621889 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 13642200 positive integers (up to 20621889) that are relatively prime to 20621889.
20621889 has 8 divisors, whose sum is 23089440
The reverse of 20621889 is 98812602
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred twenty-one thousand eight hundred eighty-nine
Scientific notation
2.0621889 × 10^7
Engineering notation
2.0621889 × 10^6
Prime Factorization
9 × 131 × 17491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20621889
Product of the distinct prime numbers
The prime factorization of 20621889 is 9 × 131 × 17491.
Since it has a total of 3 prime factors.
2 , 3 , 84 , 93 , 493 , 725 , 6184 , 5767 , 53341 , 73366 , 26736 , 34977 , 6094223 , 9607391 , 54082837 , 98691304 , 346767778 , 397984855 , 9923599262 , 7180482455
n×2
41243778
n×3
61865667
n×4
82487556
n×5
103109445
n÷2
10310944.5
n÷3
6873963
n÷3
5155472.25
n÷5
4124377.8
n2
425262305928321
n3
8.7697120687379E+21
n4
1.8084802884347E+29
n5
3.7294279766789E+36
2 √n
4541.1330084022
3 √n
274.22653845704
4 √n
67.38792924851
5 √n
29.031246878408
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
-20621888
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 20621889 can be divided by 8 positive divisors.
The sum of these divisors (counting 20621889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101010101001000001
3
Ternary
1102210200220200
4
Quaternary
1032222221001
5
Quinary
20234400024
6
Senary
2013555413
8
Octal
116525101
10
Decimal
20621889
12
Duodecimal
6aa5b69
16
Hexadecimal
13aaa41
20
Vigesimal
68hee9
36
Base36
c9zy9
md5
14bf050b5e4c37b10c9c97f18a8bd98c
sha1
41411b931f8e67455f547a6ed6cf07182141869a
sha256
7f6e6d41ead27d60693a7580c5dd80d5658b428808cf2c7c79db7f2dd6b25623
sha512
fb2922e624d3d34d4ed80c4ae66586e3196b41b59134f0e7ab25b34bb7aa49c55d7a047ccf648629e8365bf3e6f11936c1a7f0db5a25e6237acb2aa72a24b35f
ripemd-160
cdf99875033f3d2f7921cb6dd78349c609438eaa
Diameter
41243778
Circumference
129571149.97109
Area
1.3360009361531E+15
Volume
3.6734484012326E+22
Surface area
5.3440037446123E+15
Circumference
129571149.97109
Perimeter
82487556
Area
425262305928321
Diagonal
29163755.105553
Surface area
2551573835569926
Volume
8.7697120687379E+21
Space diagonal
35718159.496046
Perimeter
61865667
Area
1.8414398010294E+14
Altitude
17859079.748023
Surface area
1.8414398010294E+14
Volume
1.0335204788097E+21
Height
9721251.7018508