491381 is an odd 6-digits composite number following 491380
and preceding 491382 . In scientific notation, it is written as 4.91381 × 10^5.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 429000 positive integers (up to 491381) that are relatively prime to 491381.
491381 has 12 divisors, whose sum is 561792
The reverse of 491381 is 183194
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 26
Digital Root 8
Name
four hundred ninety-one thousand three hundred eighty-one
Scientific notation
4.91381 × 10^5
Engineering notation
4.91381 × 10^3
Prime Factorization
11 × 11 × 31 × 131
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
44671
Product of the distinct prime numbers
The prime factorization of 491381 is 11 × 11 × 31 × 131.
Since it has a total of 4 prime factors.
7 , 8 , 68 , 15 , 891 , 324 , 8348 , 107 , 86539 , 64920 , 596359 , 928266 , 6726365 , 4020455 , 30173736 , 4698114 , 626822356 , 558177099 , 6685090220 , 7374909386
n×2
982762
n×3
1474143
n×4
1965524
n×5
2456905
n÷2
245690.5
n÷3
163793.66666667
n÷3
122845.25
n÷5
98276.2
n2
241455287161
n3
118646540460459341
n4
5.8300655698001E+22
n5
2.8647834497539E+28
2 √n
700.98573451961
3 √n
78.911346365599
4 √n
26.476135188498
5 √n
13.749397633175
1 , 11 , 31 , 121 , 131 , 341 , 1441 , 3751 , 4061 , 15851 , 44671 , 491381
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-491380
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 491381 can be divided by 12 positive divisors.
The sum of these divisors (counting 491381) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110111111101110101
3
Ternary
220222001022
4
Quaternary
1313331311
5
Quinary
111211011
6
Senary
14310525
8
Octal
1677565
10
Decimal
491381
12
Duodecimal
1b8445
16
Hexadecimal
77f75
20
Vigesimal
31891
36
Base36
aj5h
md5
f8af04a00136e56b07c13e6d364e36b8
sha1
3eed7201a6daebf0c5a61300f01cd37001d7a76e
sha256
b72356c17636c712819b4d644b4da1f49c96f1337cae281eb7e04cafe56528d8
sha512
5af761a5db3c7654540cb98a9b8c77dd099db0e10a758c76c7d839e4a3aa8319536b1bf6aa73bb822d8b8669459a2d633edc004bcdd4b0ea722c1c2e989febf9
ripemd-160
51f274f02e90c6008e2db5b2001acadd402503d0
Diameter
982762
Circumference
3087437.8794272
Area
758554156315.41
Volume
4.9698546651256E+17
Surface area
3034216625261.6
Circumference
3087437.8794272
Perimeter
1965524
Area
241455287161
Diagonal
694917.67449245
Surface area
1448731722966
Volume
118646540460459341
Space diagonal
851096.857874
Perimeter
1474143
Area
104553206279.75
Altitude
425548.428937
Surface area
104553206279.75
Volume
1.3982628887319E+16
Height
231639.22483082