20188749 is an odd 8-digits composite number following 20188748
and preceding 20188750 . In scientific notation, it is written as 2.0188749 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 11476080 positive integers (up to 20188749) that are relatively prime to 20188749.
20188749 has 8 divisors, whose sum is 26943232
The reverse of 20188749 is 94788102
Previous prime number is 1393
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred eighty-eight thousand seven hundred forty-nine
Scientific notation
2.0188749 × 10^7
Engineering notation
2.0188749 × 10^6
Prime Factorization
3 × 1393 × 4831
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20188749
Product of the distinct prime numbers
The prime factorization of 20188749 is 3 × 1393 × 4831.
Since it has a total of 3 prime factors.
5 , 9 , 35 , 92 , 210 , 501 , 107 , 621 , 65588 , 63526 , 558007 , 386454 , 1897459 , 571130 , 47104895 , 98198603 , 320484629 , 965982305 , 4415138884 , 578998100
n×2
40377498
n×3
60566247
n×4
80754996
n×5
100943745
n÷2
10094374.5
n÷3
6729583
n÷3
5047187.25
n÷5
4037749.8
n2
407585586185001
n3
8.2286430955069E+21
n4
1.6612601006577E+29
n5
3.3538763195893E+36
2 √n
4493.1891791911
3 √n
272.29299544155
4 √n
67.031255241052
5 √n
28.908255315998
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20188748
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20188749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20188749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000000111001001101
3
Ternary
1101222200202110
4
Quaternary
1031000321031
5
Quinary
20132014444
6
Senary
2000414233
8
Octal
115007115
10
Decimal
20188749
12
Duodecimal
6917379
16
Hexadecimal
1340e4d
20
Vigesimal
663bh9
36
Base36
c0pql
md5
4ea91344716f6a78d1ba153ae52e4f07
sha1
9da3efcb1bf465a41a6a31a4e01b1e417b9db355
sha256
6724f53b1da25215a17e3efe97f7686a2948e9f8cbedf1f6df732d9b7ad3e1f5
sha512
2dbd0d14bfe3278ea49eb56974f1010911aaa514ed2eb140cbf4d89dd8d7b756e67f1b9220f364c53b5bc0ba745a6162d8e69599c130d4cb99063f72b6754611
ripemd-160
ecfbf4db2cb3fa1e1187fdd46240e039af5c4fd7
Diameter
40377498
Circumference
126849651.08714
Area
1.2804678832679E+15
Volume
3.4468059597142E+22
Surface area
5.1218715330716E+15
Circumference
126849651.08714
Perimeter
80754996
Area
407585586185001
Diagonal
28551202.643146
Surface area
2445513517110006
Volume
8.2286430955069E+21
Space diagonal
34967939.009255
Perimeter
60566247
Area
1.7648973592629E+14
Altitude
17483969.504628
Surface area
1.7648973592629E+14
Volume
9.6975488879946E+20
Height
9517067.5477154