66872945 is an odd 8-digits composite number following 66872944
and preceding 66872946 . In scientific notation, it is written as 6.6872945 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 53498352 positive integers (up to 66872945) that are relatively prime to 66872945.
66872945 has 4 divisors, whose sum is 80247540
The reverse of 66872945 is 54927866
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-six million eight hundred seventy-two thousand nine hundred forty-five
Scientific notation
6.6872945 × 10^7
Engineering notation
6.6872945 × 10^6
Prime Factorization
5 × 13374589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66872945
Product of the distinct prime numbers
The prime factorization of 66872945 is 5 × 13374589.
Since it has a total of 2 prime factors.
1 , 6 , 99 , 65 , 683 , 115 , 6125 , 2914 , 78024 , 87096 , 694750 , 943178 , 6336774 , 5697989 , 54009453 , 49843562 , 775833659 , 415158304 , 8370141980 , 9682336457
n×2
133745890
n×3
200618835
n×4
267491780
n×5
334364725
n÷2
33436472.5
n÷3
22290981.666667
n÷3
16718236.25
n÷5
13374589
n2
4471990772973025
n3
2.9905519300153E+23
n4
1.9998701473556E+31
n5
1.3373720637125E+39
2 √n
8177.5879695666
3 √n
405.89791127128
4 √n
90.430016972057
5 √n
36.732466389018
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66872944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66872945 can be divided by 4 positive divisors.
The sum of these divisors (counting 66872945) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111000110011001110001
3
Ternary
11122211111102202
4
Quaternary
3333012121301
5
Quinary
114104413240
6
Senary
10345152545
8
Octal
377063161
10
Decimal
66872945
12
Duodecimal
1a48b755
16
Hexadecimal
3fc6671
20
Vigesimal
10hj275
36
Base36
13tbht
md5
59609fae4ad9955593d760c9330c3f2a
sha1
13372c197309a90e9543cc550e9fe09553538617
sha256
0fe6fc4a61af9b7787c4cfb71df161b754226666240e146760a1914631e75ae1
sha512
4c39ff0c105c9a29474e09fa1e44d4cf7a7f9874a6e98b6024844d8cc3d0bd4509190a02c837d890a988aec4476de4519fd75ead5003bee34664f6a87c8906cc
ripemd-160
e1bedae4ac06e924a9c336936e496aa7259d9632
Diameter
133745890
Circumference
420175105.47183
Area
1.4049173359293E+16
Volume
1.2526794631353E+24
Surface area
5.6196693437174E+16
Circumference
420175105.47183
Perimeter
267491780
Area
4471990772973025
Diagonal
94572625.77483
Surface area
26831944637838150
Volume
2.9905519300153E+23
Space diagonal
115827338.39176
Perimeter
200618835
Area
1.9364288074421E+15
Altitude
57913669.19588
Surface area
1.9364288074421E+15
Volume
3.5243992486739E+22
Height
31524208.59161