20187644 is an even 8-digits composite number following 20187643
and preceding 20187645 . In scientific notation, it is written as 2.0187644 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 9820944 positive integers (up to 20187644) that are relatively prime to 20187644.
20187644 has 12 divisors, whose sum is 36283464
The reverse of 20187644 is 44678102
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred eighty-seven thousand six hundred forty-four
Scientific notation
2.0187644 × 10^7
Engineering notation
2.0187644 × 10^6
Prime Factorization
2 × 2 × 37 × 136403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10093822
Product of the distinct prime numbers
The prime factorization of 20187644 is 2 × 2 × 37 × 136403.
Since it has a total of 4 prime factors.
8 , 10 , 31 , 20 , 191 , 75 , 6209 , 9644 , 86265 , 57242 , 794632 , 77486 , 8393827 , 8503868 , 62870258 , 81231137 , 31038395 , 32927385 , 8526234865 , 7394009494
n×2
40375288
n×3
60562932
n×4
80750576
n×5
100938220
n÷2
10093822
n÷3
6729214.6666667
n÷3
5046911
n÷5
4037528.8
n2
407540970270736
n3
8.2272920232402E+21
n4
1.6608964244921E+29
n5
3.352958573852E+36
2 √n
4493.0662136229
3 √n
272.28802750537
4 √n
67.030338009165
5 √n
28.907938859327
1 , 2 , 4 , 37 , 74 , 148 , 136403 , 272806 , 545612 , 5046911 , 10093822 , 20187644
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187643
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187644 can be divided by 12 positive divisors.
The sum of these divisors (counting 20187644) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000000100111111100
3
Ternary
1101222122020112
4
Quaternary
1031000213330
5
Quinary
20132001034
6
Senary
2000405152
8
Octal
115004774
10
Decimal
20187644
12
Duodecimal
69167b8
16
Hexadecimal
13409fc
20
Vigesimal
663924
36
Base36
c0ovw
md5
01ac54dcaa995123a5f02f250398c60e
sha1
6c4b103cd4bce4847175d70ffc4a266622a5557f
sha256
df0be496b9aee202651ea2cb8d4680e1fb6e05afab4aa65b260a8872427066bd
sha512
e099b7fc54d9b17a4f756ee0a7051b6a3ed7885db8052133778a5bcc536ddbda8ffec9d8d68f142825dbcda74b0e9cf6345861f4f449c2f45c8c2b5c9ccfdd64
ripemd-160
cf51df26075fd7d525269063aac82fb5028a3e56
Diameter
40375288
Circumference
126842708.16737
Area
1.2803277182394E+15
Volume
3.4462400238866E+22
Surface area
5.1213108729576E+15
Circumference
126842708.16737
Perimeter
80750576
Area
407540970270736
Diagonal
28549639.93716
Surface area
2445245821624416
Volume
8.2272920232402E+21
Space diagonal
34966025.093113
Perimeter
60562932
Area
1.7647041666871E+14
Altitude
17483012.546556
Surface area
1.7647041666871E+14
Volume
9.6959566340586E+20
Height
9516546.6457199