66871856 is an even 8-digits composite number following 66871855
and preceding 66871857 . In scientific notation, it is written as 6.6871856 × 10^7.
The sum of its digits is 47. It has a total of 6 prime factors and 20 positive divisors.
There are 31982016 positive integers (up to 66871856) that are relatively prime to 66871856.
66871856 has 20 divisors, whose sum is 135198192
The reverse of 66871856 is 65817866
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-six million eight hundred seventy-one thousand eight hundred fifty-six
Scientific notation
6.6871856 × 10^7
Engineering notation
6.6871856 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 23 × 181717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8358982
Product of the distinct prime numbers
The prime factorization of 66871856 is 2 × 2 × 2 × 2 × 23 × 181717.
Since it has a total of 6 prime factors.
5 , 5 , 31 , 4 , 324 , 666 , 2802 , 4663 , 19975 , 26991 , 818279 , 97478 , 4432314 , 6639463 , 45892381 , 22053625 , 79358743 , 450053493 , 7897181363 , 476063264
n×2
133743712
n×3
200615568
n×4
267487424
n×5
334359280
n÷2
33435928
n÷3
22290618.666667
n÷3
16717964
n÷5
13374371.2
n2
4471845124884736
n3
2.9904058324559E+23
n4
1.9997398820955E+31
n5
1.3372631743295E+39
2 √n
8177.5213848696
3 √n
405.89570796257
4 √n
90.429648815362
5 √n
36.732346753442
1 , 2 , 4 , 8 , 16 , 23 , 46 , 92 , 184 , 368 , 181717 , 363434 , 726868 , 1453736 , 2907472 , 4179491 , 8358982 , 16717964 , 33435928 , 66871856
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66871855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66871856 can be divided by 20 positive divisors.
The sum of these divisors (counting 66871856) is 1, the average is 0.05.
Base
System
Value
2
Binary
11111111000110001000110000
3
Ternary
11122211102221102
4
Quaternary
3333012020300
5
Quinary
114104344411
6
Senary
10345143532
8
Octal
377061060
10
Decimal
66871856
12
Duodecimal
1a48aba8
16
Hexadecimal
3fc6230
20
Vigesimal
10hijcg
36
Base36
13tank
md5
dbc68c000740baa956ac95e95160f1d1
sha1
a27816562ff2893951b09855e702f5b403495021
sha256
4498fd4ec59e25bf9714c1f825a749163a50f3effcb48a8e36af2aec35c4333a
sha512
8d9c5ca67ce8d29fce8f53a50d2611f2ecfd5a25626ee4c312de9b86f1265e09855fc5fa985fcf4cf95097dabb754c381a8cb549c1c14fcd992c36d6eb26ebb7
ripemd-160
58b77e8df0bd8a008b572672bd86be3404a7f6a0
Diameter
133743712
Circumference
420168263.08303
Area
1.4048715792329E+16
Volume
1.2526182659328E+24
Surface area
5.6194863169317E+16
Circumference
420168263.08303
Perimeter
267487424
Area
4471845124884736
Diagonal
94571085.696261
Surface area
26831070749308416
Volume
2.9904058324559E+23
Space diagonal
115825452.18843
Perimeter
200615568
Area
1.9363657399699E+15
Altitude
57912726.094215
Surface area
1.9363657399699E+15
Volume
3.524227071049E+22
Height
31523695.232087