20187231 is an odd 8-digits composite number following 20187230
and preceding 20187232 . In scientific notation, it is written as 2.0187231 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 12916800 positive integers (up to 20187231) that are relatively prime to 20187231.
20187231 has 16 divisors, whose sum is 28013568
The reverse of 20187231 is 13278102
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred eighty-seven thousand two hundred thirty-one
Scientific notation
2.0187231 × 10^7
Engineering notation
2.0187231 × 10^6
Prime Factorization
3 × 31 × 131 × 1657
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20187231
Product of the distinct prime numbers
The prime factorization of 20187231 is 3 × 31 × 131 × 1657.
Since it has a total of 4 prime factors.
3 , 7 , 41 , 18 , 302 , 350 , 6043 , 9542 , 86020 , 3496 , 997233 , 455104 , 8076598 , 3291445 , 41833632 , 55547157 , 108433443 , 365364324 , 41899602 , 3472417047
n×2
40374462
n×3
60561693
n×4
80748924
n×5
100936155
n÷2
10093615.5
n÷3
6729077
n÷3
5046807.75
n÷5
4037446.2
n2
407524295447361
n3
8.2267870903081E+21
n4
1.6607605137987E+29
n5
3.3526156127733E+36
2 √n
4493.0202536824
3 √n
272.28617066459
4 √n
67.029995178893
5 √n
28.907820578298
1 , 3 , 31 , 93 , 131 , 393 , 1657 , 4061 , 4971 , 12183 , 51367 , 154101 , 217067 , 651201 , 6729077 , 20187231
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187230
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187231 can be divided by 16 positive divisors.
The sum of these divisors (counting 20187231) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000000100001011111
3
Ternary
1101222121200020
4
Quaternary
1031000201133
5
Quinary
20131442411
6
Senary
2000403223
8
Octal
115004137
10
Decimal
20187231
12
Duodecimal
6916513
16
Hexadecimal
134085f
20
Vigesimal
66381b
36
Base36
c0okf
md5
dff73b37fd8647b97ab99ad9da6457c1
sha1
1ab322f5ed3d73e1e9b160cd6c971ee2b38b2def
sha256
18ab0037ee6cc3792386db8dd04054e950cdb7bf1d6a0efc097f51640f8880f6
sha512
14daf319474905530f9c677be5faf2cdd87f28979fe2b1f9b3f4b67f9434095cbd33cb6ac0dfebd1f91007deecb2a1b8269c2111658bd8c05950138be676ea6a
ripemd-160
f7b9fb301f7deb8e25f0b027b76fc0e21175ee88
Diameter
40374462
Circumference
126840113.21184
Area
1.2802753327368E+15
Volume
3.4460285180746E+22
Surface area
5.1211013309471E+15
Circumference
126840113.21184
Perimeter
80748924
Area
407524295447361
Diagonal
28549055.866959
Surface area
2445145772684166
Volume
8.2267870903081E+21
Space diagonal
34965309.756129
Perimeter
60561693
Area
1.7646319625838E+14
Altitude
17482654.878065
Surface area
1.7646319625838E+14
Volume
9.6953615648914E+20
Height
9516351.9556529