20451290 is an even 8-digits composite number following 20451289
and preceding 20451291 . In scientific notation, it is written as 2.0451290 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 8180512 positive integers (up to 20451290) that are relatively prime to 20451290.
20451290 has 8 divisors, whose sum is 36812340
The reverse of 20451290 is 09215402
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred fifty-one thousand two hundred ninety
Scientific notation
2.0451290 × 10^7
Engineering notation
2.0451290 × 10^6
Prime Factorization
2 × 5 × 2045129
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451290
Product of the distinct prime numbers
The prime factorization of 20451290 is 2 × 5 × 2045129.
Since it has a total of 3 prime factors.
10 , 5 , 76 , 31 , 38 , 870 , 3715 , 7548 , 27726 , 75875 , 895311 , 444007 , 2288264 , 9898750 , 34845587 , 5185949 , 537849084 , 35735406 , 7770648030 , 5292561631
n×2
40902580
n×3
61353870
n×4
81805160
n×5
102256450
n÷2
10225645
n÷3
6817096.6666667
n÷3
5112822.5
n÷5
4090258
n2
418255262664100
n3
8.5538596707697E+21
n4
1.7493746474622E+29
n5
3.5776968233896E+36
2 √n
4522.3102503035
3 √n
273.46824426011
4 √n
67.24812451142
5 √n
28.983053694714
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
-20451289
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 20451290 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451290) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000000111111011010
3
Ternary
1102111000220012
4
Quaternary
1032000333122
5
Quinary
20213420130
6
Senary
2010201522
8
Octal
116007732
10
Decimal
20451290
12
Duodecimal
6a232a2
16
Hexadecimal
1380fda
20
Vigesimal
67g84a
36
Base36
c6cbe
md5
9a36c169ed37096f91bf5dbd2b030085
sha1
c950227fb95e5e6e9672e1b4924e574845b3c0af
sha256
953c9cd6cfc14a9f6070cb4527a4653d31ba81f99859be90129ba77a4435ca35
sha512
90a11d69ae7fbc41826d2e6af4d8d27569446742c2202599a68b3792de5549c2d1e27a43ed16978ea4a3038b3bee9781eb0615deff16e01654cf0c42914afd26
ripemd-160
87318d3af70373a3f9b5b4e45b001ae550774c8b
Diameter
40902580
Circumference
128499244.84087
Area
1.3139876605108E+15
Volume
3.5830323602037E+22
Surface area
5.2559506420432E+15
Circumference
128499244.84087
Perimeter
81805160
Area
418255262664100
Diagonal
28922491.686025
Surface area
2509531575984600
Volume
8.5538596707697E+21
Space diagonal
35422673.360325
Perimeter
61353870
Area
1.8110984136682E+14
Altitude
17711336.680163
Surface area
1.8110984136682E+14
Volume
1.0080820297532E+21
Height
9640830.5620084