66996978 is an even 8-digits composite number following 66996977
and preceding 66996979 . In scientific notation, it is written as 6.6996978 × 10^7.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 21953696 positive integers (up to 66996978) that are relatively prime to 66996978.
66996978 has 8 divisors, whose sum is 101063772
The reverse of 66996978 is 87969966
Previous prime number is 177
Is Prime? no
Number parity even
Number length 8
Sum of Digits 60
Digital Root 6
Name
sixty-six million nine hundred ninety-six thousand nine hundred seventy-eight
Scientific notation
6.6996978 × 10^7
Engineering notation
6.6996978 × 10^6
Prime Factorization
2 × 177 × 189257
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66996978
Product of the distinct prime numbers
The prime factorization of 66996978 is 2 × 177 × 189257.
Since it has a total of 3 prime factors.
8 , 5 , 53 , 11 , 273 , 812 , 4854 , 4547 , 14098 , 41111 , 854622 , 659887 , 4760634 , 2126329 , 7667115 , 62281540 , 46996196 , 495243141 , 1357358556 , 3271810640
n×2
133993956
n×3
200990934
n×4
267987912
n×5
334984890
n÷2
33498489
n÷3
22332326
n÷3
16749244.5
n÷5
13399395.6
n2
4488595061132484
n3
3.007223045616E+23
n4
2.0147485622823E+31
n5
1.3498206510276E+39
2 √n
8185.1681717604
3 √n
406.14870348591
4 √n
90.471919244373
5 √n
36.746082244054
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
-66996977
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 66996978 can be divided by 8 positive divisors.
The sum of these divisors (counting 66996978) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111100100101011110010
3
Ternary
11200001210120120
4
Quaternary
3333210223302
5
Quinary
114122400403
6
Senary
10351551110
8
Octal
377445362
10
Decimal
66996978
12
Duodecimal
1a52b496
16
Hexadecimal
3fe4af2
20
Vigesimal
10iec8i
36
Base36
13vz76
md5
749f78f2a52a65a12d3286432464b787
sha1
a366bc8d02167a357854f34ceab8d99af5b13074
sha256
85133bac0be2269ff7a7d458013da9c5467a3ea2bf1b4149586a769ac6cce992
sha512
c835e22d128dcf3bca6cdad44e37cb9f4e5145b313b72fcf648fba6b33b7dd9e5a6cf782d67bbafd2563232db7356549eb777f94c1d31f7a7c9b8b8da9f931b7
ripemd-160
95d84bb368c60864bbf99c75ea581afea73eab02
Diameter
133993956
Circumference
420954427.79503
Area
1.4101337268993E+16
Volume
1.2596626437084E+24
Surface area
5.6405349075973E+16
Circumference
420954427.79503
Perimeter
267987912
Area
4488595061132484
Diagonal
94748034.925612
Surface area
26931570366794904
Volume
3.007223045616E+23
Space diagonal
116042169.84957
Perimeter
200990934
Area
1.943618675121E+15
Altitude
58021084.924787
Surface area
1.943618675121E+15
Volume
3.5440463468259E+22
Height
31582678.308537