20181924 is an even 8-digits composite number following 20181923
and preceding 20181925 . In scientific notation, it is written as 2.0181924 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 5419008 positive integers (up to 20181924) that are relatively prime to 20181924.
20181924 has 24 divisors, whose sum is 37536408
The reverse of 20181924 is 42918102
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty-one thousand nine hundred twenty-four
Scientific notation
2.0181924 × 10^7
Engineering notation
2.0181924 × 10^6
Prime Factorization
2 × 2 × 441 × 17 × 673
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10090962
Product of the distinct prime numbers
The prime factorization of 20181924 is 2 × 2 × 441 × 17 × 673.
Since it has a total of 5 prime factors.
4 , 10 , 74 , 54 , 164 , 263 , 3168 , 9348 , 77663 , 82911 , 426756 , 656333 , 1010293 , 2722006 , 62793783 , 56804647 , 206936794 , 316686080 , 1710471084 , 8512279271
n×2
40363848
n×3
60545772
n×4
80727696
n×5
100909620
n÷2
10090962
n÷3
6727308
n÷3
5045481
n÷5
4036384.8
n2
407310056341776
n3
8.2203006015254E+21
n4
1.6590148199714E+29
n5
3.3482111011537E+36
2 √n
4492.4296321701
3 √n
272.2623082314
4 √n
67.025589383236
5 √n
28.906300509115
1 , 2 , 4 , 17 , 34 , 68 , 441 , 673 , 882 , 1346 , 1764 , 2692 , 7497 , 11441 , 14994 , 22882 , 29988 , 45764 , 296793 , 593586 , 1187172 , 5045481 , 10090962 , 20181924
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20181923
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20181924 can be divided by 24 positive divisors.
The sum of these divisors (counting 20181924) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100111111001110100100
3
Ternary
1101222100101200
4
Quaternary
1030333032210
5
Quinary
20131310144
6
Senary
2000322500
8
Octal
114771644
10
Decimal
20181924
12
Duodecimal
6913430
16
Hexadecimal
133f3a4
20
Vigesimal
662eg4
36
Base36
c0kh0
md5
4aeebbfacc51fe1322f0e72a27dfeb29
sha1
8634c0a69bab79f2d659efc949267391ab2531e6
sha256
2ce605bda4af203152ae2c8faceb271f5ba27f166474e4d45ddbc9abe5be4bc7
sha512
787313b0e2fb37046d3d22eda3f9f7c2df981a331a812baa0af8684a19c6fef4d469ec9d89cedf74fbb4f5b4efdf0f1c97621803025512b0036966042a2222f6
ripemd-160
72a4ef3b2409975a6302fe0f239dd7aca701b4de
Diameter
40363848
Circumference
126806768.34742
Area
1.2796022807366E+15
Volume
3.4433114640069E+22
Surface area
5.1184091229463E+15
Circumference
126806768.34742
Perimeter
80727696
Area
407310056341776
Diagonal
28541550.635583
Surface area
2443860338050656
Volume
8.2203006015254E+21
Space diagonal
34956117.762494
Perimeter
60545772
Area
1.7637042800442E+14
Altitude
17478058.881247
Surface area
1.7637042800442E+14
Volume
9.6877171645508E+20
Height
9513850.211861