681806 is an even 6-digits composite number following 681805
and preceding 681807 . In scientific notation, it is written as 6.81806 × 10^5.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 340902 positive integers (up to 681806) that are relatively prime to 681806.
681806 has 4 divisors, whose sum is 1022712
The reverse of 681806 is 608186
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 29
Digital Root 2
Name
six hundred eighty-one thousand eight hundred six
Scientific notation
6.81806 × 10^5
Engineering notation
6.81806 × 10^3
Prime Factorization
2 × 340903
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
681806
Product of the distinct prime numbers
The prime factorization of 681806 is 2 × 340903.
Since it has a total of 2 prime factors.
4 , 3 , 52 , 74 , 737 , 876 , 4617 , 573 , 1197 , 19416 , 3592 , 306482 , 6794188 , 2330029 , 65057814 , 80337686 , 614311217 , 13199354 , 35141540 , 5629202333
n×2
1363612
n×3
2045418
n×4
2727224
n×5
3409030
n÷2
340903
n÷3
227268.66666667
n÷3
170451.5
n÷5
136361.2
n2
464859421636
n3
316943942827954616
n4
2.1609428188376E+23
n5
1.4733437795404E+29
2 √n
825.7154473546
3 √n
88.014374373651
4 √n
28.735264873576
5 √n
14.680206469633
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
-681805
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 681806 can be divided by 4 positive divisors.
The sum of these divisors (counting 681806) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100110011101001110
3
Ternary
1021122021002
4
Quaternary
2212131032
5
Quinary
133304211
6
Senary
22340302
8
Octal
2463516
10
Decimal
681806
12
Duodecimal
28a692
16
Hexadecimal
a674e
20
Vigesimal
454a6
36
Base36
em32
md5
b0758a955d32c4862bea580be0c7c710
sha1
2c7d2bd4db2220cdd1fdb1c54666f304e91dcd88
sha256
0c9a480c798a305d09ed3b7993a33e05965ea126d0f38b765711358f75612b97
sha512
a1d35620ac613dd8f81caeef33128414bb72f058879c5a4c6050bc063ac668a10c680bf4a5b740d0aed1f2238df8aa165e3b71f160044cd2d26075da598ebd14
ripemd-160
4ef01e202501dd9a71117fc0dc568972bc4f1d74
Diameter
1363612
Circumference
4283913.4415469
Area
1460398943963.7
Volume
1.3276116831841E+18
Surface area
5841595775854.6
Circumference
4283913.4415469
Perimeter
2727224
Area
464859421636
Diagonal
964219.29210735
Surface area
2789156529816
Volume
316943942827954616
Space diagonal
1180922.6329053
Perimeter
2045418
Area
201290034162.66
Altitude
590461.31645265
Surface area
201290034162.66
Volume
3.7352201871608E+16
Height
321406.43070245