20181864 is an even 8-digits composite number following 20181863
and preceding 20181865 . In scientific notation, it is written as 2.0181864 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 16 positive divisors.
There are 6727280 positive integers (up to 20181864) that are relatively prime to 20181864.
20181864 has 16 divisors, whose sum is 50454720
The reverse of 20181864 is 46818102
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred eighty-one thousand eight hundred sixty-four
Scientific notation
2.0181864 × 10^7
Engineering notation
2.0181864 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 840911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5045466
Product of the distinct prime numbers
The prime factorization of 20181864 is 2 × 2 × 2 × 3 × 840911.
Since it has a total of 5 prime factors.
8 , 7 , 76 , 83 , 205 , 377 , 4821 , 9044 , 61693 , 47720 , 892457 , 242740 , 6794307 , 9297888 , 82068543 , 91644847 , 246195820 , 950671639 , 879563505 , 3432925473
n×2
40363728
n×3
60545592
n×4
80727456
n×5
100909320
n÷2
10090932
n÷3
6727288
n÷3
5045466
n÷5
4036372.8
n2
407307634514496
n3
8.2202272859333E+21
n4
1.6589950913379E+29
n5
3.348161331005E+36
2 √n
4492.4229542642
3 √n
272.26203842305
4 √n
67.025539567125
5 √n
28.906283321655
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 840911 , 1681822 , 2522733 , 3363644 , 5045466 , 6727288 , 10090932 , 20181864
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
-20181863
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 20181864 can be divided by 16 positive divisors.
The sum of these divisors (counting 20181864) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111001101101000
3
Ternary
1101222100022110
4
Quaternary
1030333031220
5
Quinary
20131304424
6
Senary
2000322320
8
Octal
114771550
10
Decimal
20181864
12
Duodecimal
69133a0
16
Hexadecimal
133f368
20
Vigesimal
662ed4
36
Base36
c0kfc
md5
5fdad785f965620f6186d8ef76af4012
sha1
5824dd8a10f84365589693684ad95009bb204029
sha256
61feddd85d7996a489cd5a3928c1fb25d84f11fb7b7a37a65722227f243145b7
sha512
3dbbaaa8f19e17ab7ecb961c296c1f4b63e84bec6dbe89ecba408e83b9fd1c8c8150eec3f4aad57b9c87a95c382388d1c61b03ff60c3d0a42c8b2c845f48e62c
ripemd-160
a933c64e8aa7c0de1678bd589bc8b5677f87250b
Diameter
40363728
Circumference
126806391.3563
Area
1.2795946723418E+15
Volume
3.4432807536435E+22
Surface area
5.1183786893671E+15
Circumference
126806391.3563
Perimeter
80727456
Area
407307634514496
Diagonal
28541465.782769
Surface area
2443845807086976
Volume
8.2202272859333E+21
Space diagonal
34956013.839445
Perimeter
60545592
Area
1.7636937932245E+14
Altitude
17478006.919723
Surface area
1.7636937932245E+14
Volume
9.6876307612968E+20
Height
9513821.9275898