67818981 is an odd 8-digits composite number following 67818980
and preceding 67818982 . In scientific notation, it is written as 6.7818981 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 45212652 positive integers (up to 67818981) that are relatively prime to 67818981.
67818981 has 4 divisors, whose sum is 90425312
The reverse of 67818981 is 18981876
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-seven million eight hundred eighteen thousand nine hundred eighty-one
Scientific notation
6.7818981 × 10^7
Engineering notation
6.7818981 × 10^6
Prime Factorization
3 × 22606327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
67818981
Product of the distinct prime numbers
The prime factorization of 67818981 is 3 × 22606327.
Since it has a total of 2 prime factors.
4 , 1 , 62 , 54 , 363 , 344 , 871 , 9304 , 81848 , 32654 , 433879 , 204756 , 207659 , 9834313 , 27520996 , 20148255 , 935470541 , 203228650 , 2354600449 , 40652169
n×2
135637962
n×3
203456943
n×4
271275924
n×5
339094905
n÷2
33909490.5
n÷3
22606327
n÷3
16954745.25
n÷5
13563796.2
n2
4599414183878361
n3
3.1192758314758E+23
n4
2.1154610834861E+31
n5
1.4346841502719E+39
2 √n
8235.2280478442
3 √n
407.80300346642
4 √n
90.748157269689
5 √n
36.835812359271
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
-67818980
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 67818981 can be divided by 4 positive divisors.
The sum of these divisors (counting 67818981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000010101101010111100101
3
Ternary
11201121120011010
4
Quaternary
10002231113211
5
Quinary
114330201411
6
Senary
10421332433
8
Octal
402552745
10
Decimal
67818981
12
Duodecimal
1a867119
16
Hexadecimal
40ad5e5
20
Vigesimal
113h791
36
Base36
14dlgl
md5
4955891392be49e5ba5adc686941861f
sha1
b9deab6fd94ce5730553abfc484448be5dd25c8c
sha256
2c999f789257719ce0d671f251656ff5f0b220ef0c12a60f6ebdfea6e5985693
sha512
6387712f6024161cbdd5c74e93733ff766be9cd38338000e7c9322d4d133883fcc3b6a798e7c91659cb52811a117e00d44cff521ef7931ffe7d7d3a476eb859a
ripemd-160
3d8bcd5f53d6474e7bbe99ca09bdad15f0b3ccfc
Diameter
135637962
Circumference
426119224.96709
Area
1.4449485810889E+16
Volume
1.3065992048913E+24
Surface area
5.7797943243556E+16
Circumference
426119224.96709
Perimeter
271275924
Area
4599414183878361
Diagonal
95910522.716523
Surface area
27596485103270166
Volume
3.1192758314758E+23
Space diagonal
117465920.80955
Perimeter
203456943
Area
1.9916047628826E+15
Altitude
58732960.404774
Surface area
1.9916047628826E+15
Volume
3.6761018213797E+22
Height
31970174.238841