20187993 is an odd 8-digits composite number following 20187992
and preceding 20187994 . In scientific notation, it is written as 2.0187993 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors.
There are 10764288 positive integers (up to 20187993) that are relatively prime to 20187993.
20187993 has 32 divisors, whose sum is 32852736
The reverse of 20187993 is 39978102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred eighty-seven thousand nine hundred ninety-three
Scientific notation
2.0187993 × 10^7
Engineering notation
2.0187993 × 10^6
Prime Factorization
3 × 293 × 7 × 17 × 193
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20187993
Product of the distinct prime numbers
The prime factorization of 20187993 is 3 × 293 × 7 × 17 × 193.
Since it has a total of 5 prime factors.
1 , 3 , 91 , 3 , 129 , 945 , 2535 , 2111 , 95318 , 12229 , 649006 , 640689 , 453371 , 4489624 , 31025439 , 52960009 , 775148528 , 462160376 , 4774034690 , 5026823123
n×2
40375986
n×3
60563979
n×4
80751972
n×5
100939965
n÷2
10093996.5
n÷3
6729331
n÷3
5046998.25
n÷5
4037598.6
n2
407555061368049
n3
8.2277187260127E+21
n4
1.6610112804671E+29
n5
3.3532484102992E+36
2 √n
4493.1050510755
3 √n
272.28959658354
4 √n
67.030627709096
5 √n
28.908038809582
1 , 3 , 7 , 17 , 21 , 51 , 119 , 193 , 293 , 357 , 579 , 879 , 1351 , 2051 , 3281 , 4053 , 4981 , 6153 , 9843 , 14943 , 22967 , 34867 , 56549 , 68901 , 104601 , 169647 , 395843 , 961333 , 1187529 , 2883999 , 6729331 , 20187993
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
-20187992
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 20187993 can be divided by 32 positive divisors.
The sum of these divisors (counting 20187993) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000000101101011001
3
Ternary
1101222122201110
4
Quaternary
1031000231121
5
Quinary
20132003433
6
Senary
2000410533
8
Octal
115005531
10
Decimal
20187993
12
Duodecimal
6916a49
16
Hexadecimal
1340b59
20
Vigesimal
6639jd
36
Base36
c0p5l
md5
d051aec697c9f9618c8dd3a8c767ba8e
sha1
7a03787742c54fbef1a7cf82c2a4e3b286c114f9
sha256
1752ec738663fc7935962fbb90ab17a81fd2041bc8ec64283b839eea7cd074aa
sha512
83a0dad5b62b86226182b23e8750ed1e78d51a13dd914ffaf805403ec8c438ce8151b50591538cc523efad18720161b904203a0545ddf6246c4632b02328b7ea
ripemd-160
2d19abd39372f6b3c16916f65c527aeece4d9ec2
Diameter
40375986
Circumference
126844900.99904
Area
1.2803719867272E+15
Volume
3.446418760726E+22
Surface area
5.1214879469088E+15
Circumference
126844900.99904
Perimeter
80751972
Area
407555061368049
Diagonal
28550133.497693
Surface area
2445330368208294
Volume
8.2277187260127E+21
Space diagonal
34966629.578845
Perimeter
60563979
Area
1.7647651829283E+14
Altitude
17483314.789422
Surface area
1.7647651829283E+14
Volume
9.6964595080986E+20
Height
9516711.1658977