381818 is an even 6-digits composite number following 381817
and preceding 381819 . In scientific notation, it is written as 3.81818 × 10^5.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 190908 positive integers (up to 381818) that are relatively prime to 381818.
381818 has 4 divisors, whose sum is 572730
The reverse of 381818 is 818183
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 29
Digital Root 2
Name
three hundred eighty-one thousand eight hundred eighteen
Scientific notation
3.81818 × 10^5
Engineering notation
3.81818 × 10^3
Prime Factorization
2 × 190909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
381818
Product of the distinct prime numbers
The prime factorization of 381818 is 2 × 190909.
Since it has a total of 2 prime factors.
3 , 1 , 22 , 65 , 362 , 247 , 4111 , 5590 , 64299 , 77003 , 171263 , 51101 , 7389381 , 7451076 , 79288309 , 72727379 , 527012701 , 403637596 , 9335830739 , 9737483197
n×2
763636
n×3
1145454
n×4
1527272
n×5
1909090
n÷2
190909
n÷3
127272.66666667
n÷3
95454.5
n÷5
76363.6
n2
145784985124
n3
55663331450075432
n4
2.1253261887605E+22
n5
8.1148779474015E+27
2 √n
617.91423353084
3 √n
72.546889999887
4 √n
24.857880712781
5 √n
13.072880150857
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-381817
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 381818 can be divided by 4 positive divisors.
The sum of these divisors (counting 381818) is 1, the average is 0.25.
Base
System
Value
2
Binary
1011101001101111010
3
Ternary
201101202102
4
Quaternary
1131031322
5
Quinary
44204233
6
Senary
12103402
8
Octal
1351572
10
Decimal
381818
12
Duodecimal
164b62
16
Hexadecimal
5d37a
20
Vigesimal
27eai
36
Base36
86m2
md5
efb4da22b5d1e48dc17fb74623e5c7f8
sha1
c10805dd40a8cbd4ec8b8d706cf0ef69227404ea
sha256
f2c449fd38541c9f6026c121d6357efbcb5d00d157954f7d1f653826f021b561
sha512
31b7ff37006b89cfa8dc9ae697c6145d3fef07613f758913f1f6c00b4aad5cf1e6eaaf8c9265fcab22c4e4d8a1c450f4aa8728bee398495117b51a609fd7d71d
ripemd-160
c1a32d225aee8ac6bae95e9c3aa0d94eee8dbac9
Diameter
763636
Circumference
2399033.2476167
Area
457997038269.26
Volume
2.3316201754385E+17
Surface area
1831988153077
Circumference
2399033.2476167
Perimeter
1527272
Area
145784985124
Diagonal
539972.19395817
Surface area
874709910744
Volume
55663331450075432
Space diagonal
661328.17524433
Perimeter
1145454
Area
63126750303.86
Altitude
330664.08762217
Surface area
63126750303.86
Volume
6.5599865219638E+15
Height
179990.73131939