20187790 is an even 8-digits composite number following 20187789
and preceding 20187791 . In scientific notation, it is written as 2.0187790 × 10^7.
The sum of its digits is 34. It has a total of 5 prime factors and 32 positive divisors.
There are 6620064 positive integers (up to 20187790) that are relatively prime to 20187790.
20187790 has 32 divisors, whose sum is 43338240
The reverse of 20187790 is 09778102
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred eighty-seven thousand seven hundred ninety
Scientific notation
2.0187790 × 10^7
Engineering notation
2.0187790 × 10^6
Prime Factorization
2 × 5 × 7 × 23 × 12539
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20187790
Product of the distinct prime numbers
The prime factorization of 20187790 is 2 × 5 × 7 × 23 × 12539.
Since it has a total of 5 prime factors.
5 , 1 , 32 , 51 , 96 , 376 , 6574 , 8626 , 52819 , 20566 , 743917 , 447737 , 4648463 , 76167 , 38018005 , 98284177 , 184486403 , 474341785 , 709513105 , 6698981813
n×2
40375580
n×3
60563370
n×4
80751160
n×5
100938950
n÷2
10093895
n÷3
6729263.3333333
n÷3
5046947.5
n÷5
4037558
n2
407546865084100
n3
8.2274705274761E+21
n4
1.6609444723988E+29
n5
3.3530798210447E+36
2 √n
4493.0824608502
3 √n
272.28868391276
4 √n
67.030459202144
5 √n
28.907980672496
1 , 2 , 5 , 7 , 10 , 14 , 23 , 35 , 46 , 70 , 115 , 161 , 230 , 322 , 805 , 1610 , 12539 , 25078 , 62695 , 87773 , 125390 , 175546 , 288397 , 438865 , 576794 , 877730 , 1441985 , 2018779 , 2883970 , 4037558 , 10093895 , 20187790
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187789
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187790 can be divided by 32 positive divisors.
The sum of these divisors (counting 20187790) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000000101010001110
3
Ternary
1101222122102221
4
Quaternary
1031000222032
5
Quinary
20132002130
6
Senary
2000405554
8
Octal
115005216
10
Decimal
20187790
12
Duodecimal
69168ba
16
Hexadecimal
1340a8e
20
Vigesimal
66399a
36
Base36
c0ozy
md5
175d93a21930f80d8699d2e7f5e56dd5
sha1
4744eed109f3b54169ad619e632040ef6769cbe4
sha256
d242e2b90149541a94551d002f9d8b2d67d89f840ffc75edf14c9f5aeeb2e3df
sha512
17bf1f7c7bc214d7c0cc4834f81aad457c434498f5e130f9cf94d4658a218540957662410fb2aa8f22f8488494f3d0b2d2e399dcd37fb1b0c1d9e1648376516e
ripemd-160
250dde734fdc9a8c80fce2d58d7618c707ef2b99
Diameter
40375580
Circumference
126843625.51243
Area
1.2803462373418E+15
Volume
3.4463147955661E+22
Surface area
5.121384949367E+15
Circumference
126843625.51243
Perimeter
80751160
Area
407546865084100
Diagonal
28549846.41234
Surface area
2445281190504600
Volume
8.2274705274761E+21
Space diagonal
34966277.972531
Perimeter
60563370
Area
1.7647296919777E+14
Altitude
17483138.986265
Surface area
1.7647296919777E+14
Volume
9.6961670033181E+20
Height
9516615.47078