20181399 is an odd 8-digits composite number following 20181398
and preceding 20181400 . In scientific notation, it is written as 2.0181399 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 11481120 positive integers (up to 20181399) that are relatively prime to 20181399.
20181399 has 8 divisors, whose sum is 21236160
The reverse of 20181399 is 99318102
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred eighty-one thousand three hundred ninety-nine
Scientific notation
2.0181399 × 10^7
Engineering notation
2.0181399 × 10^6
Prime Factorization
21 × 239 × 4021
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20181399
Product of the distinct prime numbers
The prime factorization of 20181399 is 21 × 239 × 4021.
Since it has a total of 3 prime factors.
9 , 3 , 98 , 39 , 779 , 396 , 4907 , 8161 , 9424 , 2084 , 146298 , 591576 , 4792572 , 8923740 , 83740348 , 23311034 , 106267818 , 623933826 , 7937356192 , 4451642201
n×2
40362798
n×3
60544197
n×4
80725596
n×5
100906995
n÷2
10090699.5
n÷3
6727133
n÷3
5045349.75
n÷5
4036279.8
n2
407288865597201
n3
8.2196591048745E+21
n4
1.6588422003945E+29
n5
3.34777563242E+36
2 √n
4492.371200157
3 √n
272.25994739023
4 √n
67.0251534885
5 √n
28.906150117451
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
-20181398
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 20181399 can be divided by 8 positive divisors.
The sum of these divisors (counting 20181399) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111111000110010111
3
Ternary
1101222022200020
4
Quaternary
1030333012113
5
Quinary
20131301044
6
Senary
2000320223
8
Octal
114770627
10
Decimal
20181399
12
Duodecimal
6913073
16
Hexadecimal
133f197
20
Vigesimal
662d9j
36
Base36
c0k2f
md5
1019d894de13290ebdd291770e6ea9f4
sha1
441632b2f0709797658e6bae419f17b9c8a0b7f5
sha256
4a3e68087d33dc6517f4204f5762228336fe42b0a9dabc8aadae9b0516ab0617
sha512
8d4892648ed61f6b0140f04243d6871356814b034ad7e339d3f3844454955c353569179f15f4e7b5626d014823ba40d8e4ab7b9690e334b9d7bac392540ee1d0
ripemd-160
02cb562c1d3e59761f4c334736c32d756cc0c499
Diameter
40362798
Circumference
126803469.67513
Area
1.2795357080491E+15
Volume
3.4430427545182E+22
Surface area
5.1181428321963E+15
Circumference
126803469.67513
Perimeter
80725596
Area
407288865597201
Diagonal
28540808.173463
Surface area
2443733193583206
Volume
8.2196591048745E+21
Space diagonal
34955208.43582
Perimeter
60544197
Area
1.7636125214286E+14
Altitude
17477604.21791
Surface area
1.7636125214286E+14
Volume
9.6869611534975E+20
Height
9513602.7244876