20187405 is an odd 8-digits composite number following 20187404
and preceding 20187406 . In scientific notation, it is written as 2.0187405 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 8740224 positive integers (up to 20187405) that are relatively prime to 20187405.
20187405 has 32 divisors, whose sum is 35629440
The reverse of 20187405 is 50478102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty-seven thousand four hundred five
Scientific notation
2.0187405 × 10^7
Engineering notation
2.0187405 × 10^6
Prime Factorization
21 × 3 × 5 × 19 × 3373
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20187405
Product of the distinct prime numbers
The prime factorization of 20187405 is 21 × 3 × 5 × 19 × 3373.
Since it has a total of 5 prime factors.
4 , 8 , 76 , 68 , 384 , 349 , 3741 , 6356 , 21084 , 76979 , 706752 , 58730 , 9234041 , 9469798 , 46968656 , 40091590 , 243435666 , 145908435 , 4134223086 , 7787530339
n×2
40374810
n×3
60562215
n×4
80749620
n×5
100937025
n÷2
10093702.5
n÷3
6729135
n÷3
5046851.25
n÷5
4037481
n2
407531320634025
n3
8.2269998198239E+21
n4
1.6608177729771E+29
n5
3.3527601014287E+36
2 √n
4493.0396170076
3 √n
272.28695296864
4 √n
67.030139616501
5 √n
28.907870411219
1 , 3 , 5 , 15 , 19 , 21 , 57 , 63 , 95 , 105 , 285 , 315 , 399 , 1197 , 1995 , 3373 , 5985 , 10119 , 16865 , 50595 , 64087 , 70833 , 192261 , 212499 , 320435 , 354165 , 961305 , 1062495 , 1345827 , 4037481 , 6729135 , 20187405
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
-20187404
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 20187405 can be divided by 32 positive divisors.
The sum of these divisors (counting 20187405) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000000100100001101
3
Ternary
1101222121220200
4
Quaternary
1031000210031
5
Quinary
20131444110
6
Senary
2000404113
8
Octal
115004415
10
Decimal
20187405
12
Duodecimal
6916639
16
Hexadecimal
134090d
20
Vigesimal
6638a5
36
Base36
c0op9
md5
26bdb9409f3e895da4b726cacdffb050
sha1
6ac53bf42e0f1c7e59c1f5c95b0634238504f3cb
sha256
b5c2d453b5941306888878b8f0eaeaa2afafceac5f0c1143e24a68274584e321
sha512
8ea16b84a95afa5f1dfd4afa53d818fe2b0955c01540d47d946ec36abfba577013933b71ed8fc34ad07ac07dd01c4aebe2f595b9936d8000d8adf9797263160f
ripemd-160
dacfdd4efd7f6784d5b4fd859a3f2898a4a46a7b
Diameter
40374810
Circumference
126841206.48608
Area
1.2802974030116E+15
Volume
3.4461176260058E+22
Surface area
5.1211896120464E+15
Circumference
126841206.48608
Perimeter
80749620
Area
407531320634025
Diagonal
28549301.940118
Surface area
2445187923804150
Volume
8.2269998198239E+21
Space diagonal
34965611.13297
Perimeter
60562215
Area
1.7646623825344E+14
Altitude
17482805.566485
Surface area
1.7646623825344E+14
Volume
9.69561226903E+20
Height
9516433.9800395