68454987 is an odd 8-digits composite number following 68454986
and preceding 68454988 . In scientific notation, it is written as 6.8454987 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 45589920 positive integers (up to 68454987) that are relatively prime to 68454987.
68454987 has 8 divisors, whose sum is 91366800
The reverse of 68454987 is 78945486
Previous prime number is 1021
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-eight million four hundred fifty-four thousand nine hundred eighty-seven
Scientific notation
6.8454987 × 10^7
Engineering notation
6.8454987 × 10^6
Prime Factorization
3 × 1021 × 22349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68454987
Product of the distinct prime numbers
The prime factorization of 68454987 is 3 × 1021 × 22349.
Since it has a total of 3 prime factors.
7 , 5 , 77 , 17 , 212 , 1 , 4051 , 3018 , 79764 , 96689 , 564458 , 129279 , 9913900 , 3294140 , 44957132 , 83615716 , 341190035 , 984261370 , 1441435963 , 1094011410
n×2
136909974
n×3
205364961
n×4
273819948
n×5
342274935
n÷2
34227493.5
n÷3
22818329
n÷3
17113746.75
n÷5
13690997.4
n2
4686085245170169
n3
3.2078590453902E+23
n4
2.1959394925002E+31
n5
1.5032300941188E+39
2 √n
8273.7528969628
3 √n
409.07383048343
4 √n
90.960172036792
5 √n
36.904643846577
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
-68454986
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 68454987 can be divided by 8 positive divisors.
The sum of these divisors (counting 68454987) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101001000101001001011
3
Ternary
11202210212120220
4
Quaternary
10011020221023
5
Quinary
120011024422
6
Senary
10443121123
8
Octal
405105113
10
Decimal
68454987
12
Duodecimal
1ab131a3
16
Hexadecimal
4148a4b
20
Vigesimal
117gh97
36
Base36
14r87f
md5
08c72f241060b96ce07c6e25b10fa081
sha1
bf41d867f90d202b2846c321486c0a1fdbc617e7
sha256
e331afdd12c38a87fbacba17316340671f9b22a1b9f03520ecbddd6429b0dbcd
sha512
f01d2f671c0735b046313a0dd986c81ff74aec6d3111098f76387e8138bd7cc9327d40c4b90f8c9d39ea82238be98a9adb4a326d081879801c79d6f5b97792ed
ripemd-160
ad26ac0fc5490cb667be2a7f7614ef824214408d
Diameter
136909974
Circumference
430115368.52157
Area
1.4721770980322E+16
Volume
1.3437048547666E+24
Surface area
5.8887083921289E+16
Circumference
430115368.52157
Perimeter
273819948
Area
4686085245170169
Diagonal
96809971.027474
Surface area
28116511471021014
Volume
3.2078590453902E+23
Space diagonal
118567515.51547
Perimeter
205364961
Area
2.0291344333084E+15
Altitude
59283757.757733
Surface area
2.0291344333084E+15
Volume
3.7804981401433E+22
Height
32269990.342491