66938081 is an odd 8-digits composite number following 66938080
and preceding 66938082 . In scientific notation, it is written as 6.6938081 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 57259728 positive integers (up to 66938081) that are relatively prime to 66938081.
66938081 has 8 divisors, whose sum is 76655040
The reverse of 66938081 is 18083966
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-six million nine hundred thirty-eight thousand eighty-one
Scientific notation
6.6938081 × 10^7
Engineering notation
6.6938081 × 10^6
Prime Factorization
7 × 509 × 18787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66938081
Product of the distinct prime numbers
The prime factorization of 66938081 is 7 × 509 × 18787.
Since it has a total of 3 prime factors.
7 , 1 , 100 , 35 , 451 , 708 , 5669 , 3751 , 88728 , 64007 , 853026 , 282743 , 7375257 , 6245335 , 10885040 , 28836856 , 286565862 , 854678812 , 406973224 , 188074085
n×2
133876162
n×3
200814243
n×4
267752324
n×5
334690405
n÷2
33469040.5
n÷3
22312693.666667
n÷3
16734520.25
n÷5
13387616.2
n2
4480706687962561
n3
2.9992990721608E+23
n4
2.0076732423552E+31
n5
1.3438979411831E+39
2 √n
8181.5695926882
3 √n
406.02965357273
4 √n
90.452029234773
5 √n
36.739619279595
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
-66938080
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 66938081 can be divided by 8 positive divisors.
The sum of these divisors (counting 66938081) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111010110010011100001
3
Ternary
11122221210210012
4
Quaternary
3333112103201
5
Quinary
114114004311
6
Senary
10350414305
8
Octal
377262341
10
Decimal
66938081
12
Duodecimal
1a501395
16
Hexadecimal
3fd64e1
20
Vigesimal
10i7541
36
Base36
13upr5
md5
e61d01e7383a89381ab85f3d695efa86
sha1
74ac8ea53bb8321801f236ff1d385d8eef07da64
sha256
11c4ad3d19ba1cf4ae9b8f8dde201f947b8693f62b0adbfda5de190f6b77cc3a
sha512
b3b30fb8e5c9621d42efcc1565b1461972d2ccda49e256a4c694b3d212a64e9cc4ec228093e83044b779a2a4e6c155ceb446ed8f85b9988cd8a6dd7f9948e31a
ripemd-160
90565983a9f6e4ac0d4cf35421f46139be62a35d
Diameter
133876162
Circumference
420584367.03
Area
1.4076555213794E+16
Volume
1.2563434574692E+24
Surface area
5.6306220855175E+16
Circumference
420584367.03
Perimeter
267752324
Area
4480706687962561
Diagonal
94664741.989429
Surface area
26884240127775366
Volume
2.9992990721608E+23
Space diagonal
115940157.25316
Perimeter
200814243
Area
1.9402029093412E+15
Altitude
57970078.62658
Surface area
1.9402029093412E+15
Volume
3.5347078545524E+22
Height
31554913.996476