66887947 is an odd 8-digits composite number following 66887946
and preceding 66887948 . In scientific notation, it is written as 6.6887947 × 10^7.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 56796072 positive integers (up to 66887947) that are relatively prime to 66887947.
66887947 has 8 divisors, whose sum is 77158656
The reverse of 66887947 is 74978866
Previous prime number is 107
Is Prime? no Number parity odd Number length 8 Sum of Digits 55 Digital Root 1
Name
sixty-six million eight hundred eighty-seven thousand nine hundred forty-seven
Scientific notation
6.6887947 × 10^7
Engineering notation
6.6887947 × 10^6
Prime Factorization
7 × 107 × 89303
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
66887947 Product of the distinct prime numbers
The prime factorization of 66887947 is 7 × 107 × 89303.
Since it has a total of 3 prime factors.
2 , 9 , 27 , 90 , 482 , 717 , 5082 , 5156 , 58444 , 8888 , 99946 , 196205 , 6089214 , 5941030 , 45712185 , 66020591 , 387384062 , 893723957 , 78781675 , 2585166694
n×2
133775894
n×3
200663841
n×4
267551788
n×5
334439735
n÷2
33443973.5
n÷3
22295982.333333
n÷3
16721986.75
n÷5
13377589.4
n2
4473997453874809
n3
2.9925650457291E+23
n4
2.0016653217278E+31
n5
1.3388728395147E+39
2 √n8178.5051812663
3 √n405.92826148826
4 √n90.435088219487
5 √n36.734114323076
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
-66887946 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 66887947 can be divided by 8 positive divisors.
The sum of these divisors (counting 66887947) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111001010000100001011
3
Ternary
11122212021000101
4
Quaternary
3333022010023
5
Quinary
114110403242
6
Senary
10345350231
8
Octal
377120413
10
Decimal
66887947
12
Duodecimal
1a498377
16
Hexadecimal
3fca10b
20
Vigesimal
10i0jh7
36
Base36
13tn2j
md5
0ac02b3de1f26086f510d3279f638530
sha1
5b6d0559d14dd7e7093bc1a7d72d247341a289b4
sha256
99e4131033d19eb6af369b787b111305be83bea06840029a2b3d4e67ce248d72
sha512
814c60e60079ae572e23691221d1cf475e06deaaf5d2224f90e38dcbd4c44eaddb7f044ae12be8a44b4b173b06835b057bcae2fd4b1e67591ba28f16ae5ffdcc
ripemd-160
ee11d2364c196d49c3178f4d0b9354254475abd0
Diameter
133775894
Circumference
420269365.81781
Area
1.4055477533273E+16
Volume
1.2535227150736E+24
Surface area
5.622191013309E+16
Circumference
420269365.81781
Perimeter
267551788
Area
4473997453874809
Diagonal
94593841.806693
Surface area
26843984723248854
Volume
2.9925650457291E+23
Space diagonal
115853322.61797
Perimeter
200663841
Area
1.9372977257612E+15
Altitude
57926661.308987
Surface area
1.9372977257612E+15
Volume
3.5267717282948E+22
Height
31531280.602231