1381805 is an odd 7-digits composite number following 1381804
and preceding 1381806 . In scientific notation, it is written as 1.381805 × 10^6.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 1079568 positive integers (up to 1381805) that are relatively prime to 1381805.
1381805 has 8 divisors, whose sum is 1696992
The reverse of 1381805 is 5081831
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 26
Digital Root 8
Name
one million three hundred eighty-one thousand eight hundred five
Scientific notation
1.381805 × 10^6
Engineering notation
1.381805 × 10^6
Prime Factorization
5 × 43 × 6427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1381805
Product of the distinct prime numbers
The prime factorization of 1381805 is 5 × 43 × 6427.
Since it has a total of 3 prime factors.
1 , 4 , 39 , 68 , 568 , 937 , 7391 , 9019 , 97965 , 77645 , 42866 , 564666 , 2345038 , 5408299 , 90572799 , 5790681 , 638163278 , 456274168 , 1707880010 , 2772827776
n×2
2763610
n×3
4145415
n×4
5527220
n×5
6909025
n÷2
690902.5
n÷3
460601.66666667
n÷3
345451.25
n÷5
276361
n2
1909385058025
n3
2638397820104235125
n4
3.6457512998091E+24
n5
5.0377173748328E+30
2 √n
1175.5020204151
3 √n
111.38214739051
4 √n
34.28559494037
5 √n
16.907887595909
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
-1381804
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 1381805 can be divided by 8 positive divisors.
The sum of these divisors (counting 1381805) is 1, the average is 0.125.
Base
System
Value
2
Binary
101010001010110101101
3
Ternary
2121012110222
4
Quaternary
11101112231
5
Quinary
323204210
6
Senary
45341125
8
Octal
5212655
10
Decimal
1381805
12
Duodecimal
5677a5
16
Hexadecimal
1515ad
20
Vigesimal
8cea5
36
Base36
tm7h
md5
d0701b028c35e82b7a567a6ce521c5ec
sha1
03685fa1e724490399cb9c51dd5901cdc3f50c0d
sha256
3fec5fd759d5723b5c978ab8b7c9f5d562adf79664375a43e360e1c97c3e0cb0
sha512
4a4db6a9bbc657724589a49e9b5b66d1cc6e56815a0a6a194d95552b6c36362413edf95b3c4fee4b5b2203853acdaee6facfebf016afe4650392e1eddf2465de
ripemd-160
3ea9770c8fc2eaa9007c240ec4d64e697303083c
Diameter
2763610
Circumference
8682136.8733873
Area
5998510071165.5
Volume
1.1051694945182E+19
Surface area
23994040284662
Circumference
8682136.8733873
Perimeter
5527220
Area
1909385058025
Diagonal
1954167.371555
Surface area
11456310348150
Volume
2638397820104235125
Space diagonal
2393356.4661527
Perimeter
4145415
Area
826787982928.04
Altitude
1196678.2330764
Surface area
826787982928.04
Volume
3.1093816501058E+17
Height
651389.12385165