20402505 is an odd 8-digits composite number following 20402504
and preceding 20402506 . In scientific notation, it is written as 2.0402505 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 10612800 positive integers (up to 20402505) that are relatively prime to 20402505.
20402505 has 24 divisors, whose sum is 29748096
The reverse of 20402505 is 50520402
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million four hundred two thousand five hundred five
Scientific notation
2.0402505 × 10^7
Engineering notation
2.0402505 × 10^6
Prime Factorization
15 × 3 × 67 × 67 × 101
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
304515
Product of the distinct prime numbers
The prime factorization of 20402505 is 15 × 3 × 67 × 67 × 101.
Since it has a total of 5 prime factors.
2 , 5 , 98 , 57 , 195 , 407 , 1555 , 7308 , 15701 , 72366 , 136585 , 651471 , 1080373 , 3144888 , 61553337 , 23704023 , 287247307 , 585332246 , 260816240 , 3689804078
n×2
40805010
n×3
61207515
n×4
81610020
n×5
102012525
n÷2
10201252.5
n÷3
6800835
n÷3
5100626.25
n÷5
4080501
n2
416262210275025
n3
8.4927918264472E+21
n4
1.7327422770305E+29
n5
3.5352282970826E+36
2 √n
4516.9132159031
3 √n
273.25062521708
4 √n
67.207984762996
5 √n
28.969213107194
1 , 3 , 15 , 45 , 67 , 101 , 201 , 303 , 1005 , 1515 , 3015 , 4489 , 4545 , 6767 , 13467 , 20301 , 67335 , 101505 , 202005 , 304515 , 453389 , 1360167 , 6800835 , 20402505
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402504
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402505 can be divided by 24 positive divisors.
The sum of these divisors (counting 20402505) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101110101000101001001
3
Ternary
1102101112222100
4
Quaternary
1031311011021
5
Quinary
20210340010
6
Senary
2005144013
8
Octal
115650511
10
Decimal
20402505
12
Duodecimal
69bb009
16
Hexadecimal
1375149
20
Vigesimal
67a655
36
Base36
c5ao9
md5
cbdd2a724466d6ad8966f6ad94cb5065
sha1
23f7f8a722dc02f87044c5ac235a5f295a96df17
sha256
cbbb502c8fab079a6389d0fb1c72092792c2df6acbaa76cf48e2edc05e28a97b
sha512
a79c6833c63d3d8bcc50d4d054977ff9fe6ee7925ddd7cbd17dd26165dd7d6ff13fcecb4ed4d26c0ca61eadafe81c5d9b10d362b7399419c55ee853d9705fdbe
ripemd-160
20e6970f9a4c61544e7ad91b572103cdba4287b8
Diameter
40805010
Circumference
128192719.64566
Area
1.3077263017671E+15
Volume
3.5574523213912E+22
Surface area
5.2309052070683E+15
Circumference
128192719.64566
Perimeter
81610020
Area
416262210275025
Diagonal
28853499.277385
Surface area
2497573261650150
Volume
8.4927918264472E+21
Space diagonal
35338175.261678
Perimeter
61207515
Area
1.8024682436682E+14
Altitude
17669087.630839
Surface area
1.8024682436682E+14
Volume
1.0008851152811E+21
Height
9617833.0924616