20405725 is an odd 8-digits composite number following 20405724
and preceding 20405726 . In scientific notation, it is written as 2.0405725 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16193520 positive integers (up to 20405725) that are relatively prime to 20405725.
20405725 has 8 divisors, whose sum is 21392384
The reverse of 20405725 is 52750402
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred five thousand seven hundred twenty-five
Scientific notation
2.0405725 × 10^7
Engineering notation
2.0405725 × 10^6
Prime Factorization
25 × 127 × 6427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20405725
Product of the distinct prime numbers
The prime factorization of 20405725 is 25 × 127 × 6427.
Since it has a total of 3 prime factors.
3 , 7 , 13 , 98 , 928 , 237 , 9223 , 4676 , 65207 , 92779 , 620434 , 800523 , 6917449 , 2815914 , 70263137 , 74726416 , 783507033 , 903597316 , 4764670674 , 6985205241
n×2
40811450
n×3
61217175
n×4
81622900
n×5
102028625
n÷2
10202862.5
n÷3
6801908.3333333
n÷3
5101431.25
n÷5
4081145
n2
416393612775625
n3
8.4968135540559E+21
n4
1.7338364076034E+29
n5
3.5380188928542E+36
2 √n
4517.2696399485
3 √n
273.2649996077
4 √n
67.21063636024
5 √n
28.970127455486
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
-20405724
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 20405725 can be divided by 8 positive divisors.
The sum of these divisors (counting 20405725) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101110111011101
3
Ternary
1102101201101121
4
Quaternary
1031311313131
5
Quinary
20210440400
6
Senary
2005210541
8
Octal
115656735
10
Decimal
20405725
12
Duodecimal
6a00a51
16
Hexadecimal
1375ddd
20
Vigesimal
67ae65
36
Base36
c5d5p
md5
8e45389b5e0ded62760985479dede108
sha1
317de6c4eb3380f67fc57d163263483902766618
sha256
72ffb18973acb507eab6a19a376e3ae46d4d288bbb447b370593c5100d765984
sha512
45b8f074e6e31aaf8befd12562e0cdb4b53d673847bbfae800e577545e4a9ba35f6afe1a327bb9866c2f6f444163019619c8e8f0e395d64ef5437d0b8d4b2085
ripemd-160
9f9d5766a335f8abcf0e48b9934e211bd25f3096
Diameter
40811450
Circumference
128212951.50235
Area
1.3081391148976E+15
Volume
3.5591369387126E+22
Surface area
5.2325564595905E+15
Circumference
128212951.50235
Perimeter
81622900
Area
416393612775625
Diagonal
28858053.045056
Surface area
2498361676653750
Volume
8.4968135540559E+21
Space diagonal
35343752.465278
Perimeter
61217175
Area
1.8030372331864E+14
Altitude
17671876.232639
Surface area
1.8030372331864E+14
Volume
1.0013590804251E+21
Height
9619351.0150186