66888978 is an even 8-digits composite number following 66888977
and preceding 66888979 . In scientific notation, it is written as 6.6888978 × 10^7.
The sum of its digits is 60. It has a total of 4 prime factors and 16 positive divisors.
There are 20581200 positive integers (up to 66888978) that are relatively prime to 66888978.
66888978 has 16 divisors, whose sum is 144068736
The reverse of 66888978 is 87988866
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 60
Digital Root 6
Name
sixty-six million eight hundred eighty-eight thousand nine hundred seventy-eight
Scientific notation
6.6888978 × 10^7
Engineering notation
6.6888978 × 10^6
Prime Factorization
2 × 3 × 13 × 857551
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66888978
Product of the distinct prime numbers
The prime factorization of 66888978 is 2 × 3 × 13 × 857551.
Since it has a total of 4 prime factors.
3 , 2 , 67 , 52 , 564 , 915 , 9631 , 1634 , 18486 , 91998 , 378879 , 721039 , 2023556 , 8927745 , 37678769 , 99175183 , 509274844 , 96651485 , 6788675251 , 3552270732
n×2
133777956
n×3
200666934
n×4
267555912
n×5
334444890
n÷2
33444489
n÷3
22296326
n÷3
16722244.5
n÷5
13377795.6
n2
4474135377884484
n3
2.9927034286034E+23
n4
2.0017887379638E+31
n5
1.3389760285431E+39
2 √n
8178.5682121017
3 √n
405.93034711507
4 √n
90.435436705429
5 √n
36.734227565118
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 857551 , 1715102 , 2572653 , 5145306 , 11148163 , 22296326 , 33444489 , 66888978
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66888977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66888978 can be divided by 16 positive divisors.
The sum of these divisors (counting 66888978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111001010010100010010
3
Ternary
11122212022102120
4
Quaternary
3333022110102
5
Quinary
114110421403
6
Senary
10345355110
8
Octal
377122422
10
Decimal
66888978
12
Duodecimal
1a498a96
16
Hexadecimal
3fca512
20
Vigesimal
10i128i
36
Base36
13tnv6
md5
172bebf3211702aaf91476c894f9e803
sha1
174a8b62f9e0d455d0b98a49d36e0b2c4e5bc4ab
sha256
3fe23759657e9e2e0b6c13d46e19789d97ddad2f4097ead82af42505909fca7d
sha512
ce3e2a08da627ca0595f4964ab6b5911e20a2b1c128e7f1fdce40bf17a482ea6580534f64608ad8190d23ae8f034618032fa43bc2c6a37cb0c38dd3bcb5c1416
ripemd-160
47f69e1527fecd56828819b1bdde4d0dc2f3daf7
Diameter
133777956
Circumference
420275843.78186
Area
1.4055910834328E+16
Volume
1.2535806807564E+24
Surface area
5.6223643337312E+16
Circumference
420275843.78186
Perimeter
267555912
Area
4474135377884484
Diagonal
94595299.860876
Surface area
26844812267306904
Volume
2.9927034286034E+23
Space diagonal
115855108.36236
Perimeter
200666934
Area
1.9373574486093E+15
Altitude
57927554.181178
Surface area
1.9373574486093E+15
Volume
3.5269348140761E+22
Height
31531766.620292