20455989 is an odd 8-digits composite number following 20455988
and preceding 20455990 . In scientific notation, it is written as 2.0455989 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 12919536 positive integers (up to 20455989) that are relatively prime to 20455989.
20455989 has 8 divisors, whose sum is 28710240
The reverse of 20455989 is 98955402
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million four hundred fifty-five thousand nine hundred eighty-nine
Scientific notation
2.0455989 × 10^7
Engineering notation
2.0455989 × 10^6
Prime Factorization
3 × 19 × 358877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20455989
Product of the distinct prime numbers
The prime factorization of 20455989 is 3 × 19 × 358877.
Since it has a total of 3 prime factors.
10 , 3 , 38 , 26 , 916 , 686 , 4537 , 6152 , 58019 , 21106 , 561062 , 630170 , 6648632 , 7458499 , 2567006 , 56198204 , 937795929 , 87621258 , 4518447906 , 483526311
n×2
40911978
n×3
61367967
n×4
81823956
n×5
102279945
n÷2
10227994.5
n÷3
6818663
n÷3
5113997.25
n÷5
4091197.8
n2
418447485968121
n3
8.5597571700415E+21
n4
1.7509829851304E+29
n5
3.5818088683015E+36
2 √n
4522.8297558055
3 √n
273.48918717494
4 √n
67.251987002657
5 √n
28.984385433242
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
-20455988
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 20455989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20455989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000010001000110101
3
Ternary
1102111021100020
4
Quaternary
1032002020311
5
Quinary
20214042424
6
Senary
2010235353
8
Octal
116021065
10
Decimal
20455989
12
Duodecimal
6a25b59
16
Hexadecimal
1382235
20
Vigesimal
67gjj9
36
Base36
c6fxx
md5
f10d6345b8fca73cd709d799a7dcde99
sha1
e4abf81b7286e8a846183f0743cabbe4595387cd
sha256
0cd5202f91ca44fe2e558319f9dc1e6fdf49a35c5989c72288dba82d5a8c7b55
sha512
84250f90050c6e87c677c1021e9abac576a8687a4fb98522703ffbd4d10ed515028774d42677ea7140beba0cb7feb09e0929d311b5bc0bc482f0fd960beb08ff
ripemd-160
310a2620fa48916bab0ea9d763e7ebb58dfa3a63
Diameter
40911978
Circumference
128528769.52863
Area
1.3145915478306E+15
Volume
3.585502698922E+22
Surface area
5.2583661913223E+15
Circumference
128528769.52863
Perimeter
81823956
Area
418447485968121
Diagonal
28929137.075555
Surface area
2510684915808726
Volume
8.5597571700415E+21
Space diagonal
35430812.26707
Perimeter
61367967
Area
1.8119307649906E+14
Altitude
17715406.133535
Surface area
1.8119307649906E+14
Volume
1.0087770567078E+21
Height
9643045.6918516