20454985 is an odd 8-digits composite number following 20454984
and preceding 20454986 . In scientific notation, it is written as 2.0454985 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 16363984 positive integers (up to 20454985) that are relatively prime to 20454985.
20454985 has 4 divisors, whose sum is 24545988
The reverse of 20454985 is 58945402
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million four hundred fifty-four thousand nine hundred eighty-five
Scientific notation
2.0454985 × 10^7
Engineering notation
2.0454985 × 10^6
Prime Factorization
5 × 4090997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20454985
Product of the distinct prime numbers
The prime factorization of 20454985 is 5 × 4090997.
Since it has a total of 2 prime factors.
4 , 6 , 13 , 10 , 876 , 322 , 4147 , 6418 , 31503 , 45655 , 105578 , 106671 , 6860340 , 890597 , 47135736 , 77292372 , 435393385 , 401644951 , 2682456676 , 5120044908
n×2
40909970
n×3
61364955
n×4
81819940
n×5
102274925
n÷2
10227492.5
n÷3
6818328.3333333
n÷3
5113746.25
n÷5
4090997
n2
418406411350225
n3
8.5584968680727E+21
n4
1.7506392505897E+29
n5
3.5809299611224E+36
2 √n
4522.7187619838
3 √n
273.48471272924
4 √n
67.2511617891
5 √n
28.984100911244
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
-20454984
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 20454985 can be divided by 4 positive divisors.
The sum of these divisors (counting 20454985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000001111001001001
3
Ternary
1102111012222001
4
Quaternary
1032001321021
5
Quinary
20214024420
6
Senary
2010231001
8
Octal
116017111
10
Decimal
20454985
12
Duodecimal
6a25461
16
Hexadecimal
1381e49
20
Vigesimal
67gh95
36
Base36
c6f61
md5
0bb01efbbc8834de1f7bc5f5f61e3c4b
sha1
7522322af2278edcb0c9d357982d4ce5b0fd9a2c
sha256
a3436a4266c35d2f02598348f78a6faf42c7a215b82d298ca6a3ac65be53e7b9
sha512
97ca34d853413b85fa07147d7ae1a87d2832370bc2f9815bb422436f9ebe1de236d04ccb164bea0efa249739d0d97f4ce779e9b04b8450b8d3fbdd63c79597a8
ripemd-160
bbc0ab464dc303c8b7c128a59cb5eb3ac2cee3f2
Diameter
40909970
Circumference
128522461.21058
Area
1.3144625081127E+15
Volume
3.5849747848678E+22
Surface area
5.2578500324509E+15
Circumference
128522461.21058
Perimeter
81819940
Area
418406411350225
Diagonal
28927717.205138
Surface area
2510438468101350
Volume
8.5584968680727E+21
Space diagonal
35429073.288059
Perimeter
61364955
Area
1.8117529066779E+14
Altitude
17714536.64403
Surface area
1.8117529066779E+14
Volume
1.0086285286963E+21
Height
9642572.4017127