20451251 is an odd 8-digits composite number following 20451250
and preceding 20451252 . In scientific notation, it is written as 2.0451251 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 19526080 positive integers (up to 20451251) that are relatively prime to 20451251.
20451251 has 8 divisors, whose sum is 21397824
The reverse of 20451251 is 15215402
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million four hundred fifty-one thousand two hundred fifty-one
Scientific notation
2.0451251 × 10^7
Engineering notation
2.0451251 × 10^6
Prime Factorization
47 × 41 × 10613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451251
Product of the distinct prime numbers
The prime factorization of 20451251 is 47 × 41 × 10613.
Since it has a total of 3 prime factors.
5 , 6 , 5 , 26 , 206 , 249 , 2807 , 3804 , 73549 , 8456 , 171203 , 910158 , 6796971 , 7428601 , 92818882 , 48429158 , 650139783 , 561230662 , 8709690221 , 9168779712
n×2
40902502
n×3
61353753
n×4
81805004
n×5
102256255
n÷2
10225625.5
n÷3
6817083.6666667
n÷3
5112812.75
n÷5
4090250.2
n2
418253667465001
n3
8.5538107349973E+21
n4
1.7493613034792E+29
n5
3.5776627107141E+36
2 √n
4522.3059383461
3 √n
273.46807042807
4 √n
67.248092451355
5 √n
28.983042640741
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
-20451250
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 20451251 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451251) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000000111110110011
3
Ternary
1102111000211202
4
Quaternary
1032000332303
5
Quinary
20213420001
6
Senary
2010201415
8
Octal
116007663
10
Decimal
20451251
12
Duodecimal
6a2326b
16
Hexadecimal
1380fb3
20
Vigesimal
67g82b
36
Base36
c6cab
md5
b311ca0b14debf5120ca74037c71cdd7
sha1
e41ed4a9fa7adf16d6d79e62008aae150494a38c
sha256
3e0bf059916ddad15a360f94ca0f798d318a9308529703eb9e30a4796c0afa6d
sha512
9bfa5dd82214829db67ef76941f9e8acdf21285ae504c069550f9975dec9b2a285231cf740e3b764be2bc8168cb7c6c54f4f02d1f92e428a90afe80fcb6af1cb
ripemd-160
1ffb14215c154e7d947bf3d98b3334dc17e5e9cf
Diameter
40902502
Circumference
128498999.79664
Area
1.313982649045E+15
Volume
3.5830118620353E+22
Surface area
5.2559305961801E+15
Circumference
128498999.79664
Perimeter
81805004
Area
418253667465001
Diagonal
28922436.531696
Surface area
2509522004790006
Volume
8.5538107349973E+21
Space diagonal
35422605.810344
Perimeter
61353753
Area
1.8110915062535E+14
Altitude
17711302.905172
Surface area
1.8110915062535E+14
Volume
1.0080762626171E+21
Height
9640812.1772321