1681808 is an even 7-digits composite number following 1681807
and preceding 1681809 . In scientific notation, it is written as 1.681808 × 10^6.
The sum of its digits is 32. It has a total of 6 prime factors and 20 positive divisors.
There are 835584 positive integers (up to 1681808) that are relatively prime to 1681808.
1681808 has 20 divisors, whose sum is 3279180
The reverse of 1681808 is 8081861
Previous prime number is 409
Is Prime? no
Number parity even
Number length 7
Sum of Digits 32
Digital Root 5
Name
one million six hundred eighty-one thousand eight hundred eight
Scientific notation
1.681808 × 10^6
Engineering notation
1.681808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 409 × 257
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
210226
Product of the distinct prime numbers
The prime factorization of 1681808 is 2 × 2 × 2 × 2 × 409 × 257.
Since it has a total of 6 prime factors.
7 , 1 , 5 , 76 , 535 , 795 , 8918 , 8754 , 63584 , 67618 , 399122 , 289179 , 668072 , 4412894 , 29019677 , 91239582 , 420612162 , 749164178 , 4243088741 , 4006079108
n×2
3363616
n×3
5045424
n×4
6727232
n×5
8409040
n÷2
840904
n÷3
560602.66666667
n÷3
420452
n÷5
336361.6
n2
2828478148864
n3
4756957178584666112
n4
8.0002886386011E+24
n5
1.3454949434708E+31
2 √n
1296.8454032767
3 √n
118.92106904757
4 √n
36.011739797971
5 √n
17.585522751958
1 , 2 , 4 , 8 , 16 , 257 , 409 , 514 , 818 , 1028 , 1636 , 2056 , 3272 , 4112 , 6544 , 105113 , 210226 , 420452 , 840904 , 1681808
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1681807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1681808 can be divided by 20 positive divisors.
The sum of these divisors (counting 1681808) is 1, the average is 0.05.
Base
System
Value
2
Binary
110011010100110010000
3
Ternary
10011110000012
4
Quaternary
12122212100
5
Quinary
412304213
6
Senary
100014052
8
Octal
6324620
10
Decimal
1681808
12
Duodecimal
691328
16
Hexadecimal
19a990
20
Vigesimal
aa4a8
36
Base36
101ow
md5
4ccbce6f8d71b1b3e5d24172282c5633
sha1
674aa8d918ed615613d76a935bf8e4ffd3a2b35c
sha256
37451b1112a436f35e4248cfe2b14805e6147bac910406197d4e0e7a9788de4b
sha512
908caacc7603a871bab8743e729d112a8882f035d5f4b78e6d88da83b3667d9536e4d84dace704861db3ac9b9593e444af58befabd8b84f8205658339d5fe164
ripemd-160
7a47a16ab9fe97bf293252bb9125fbdd294800c9
Diameter
3363616
Circumference
10567111.315097
Area
8885926173310.4
Volume
1.9925895634244E+19
Surface area
35543704693242
Circumference
10567111.315097
Perimeter
6727232
Area
2828478148864
Diagonal
2378435.6829076
Surface area
16970868893184
Volume
4756957178584666112
Space diagonal
2912976.9045758
Perimeter
5045424
Area
1224766965482.7
Altitude
1456488.4522879
Surface area
1224766965482.7
Volume
5.6061277979854E+17
Height
792811.89430252