66442905 is an odd 8-digits composite number following 66442904
and preceding 66442906 . In scientific notation, it is written as 6.6442905 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 33570720 positive integers (up to 66442905) that are relatively prime to 66442905.
66442905 has 16 divisors, whose sum is 99471360
The reverse of 66442905 is 50924466
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixty-six million four hundred forty-two thousand nine hundred five
Scientific notation
6.6442905 × 10^7
Engineering notation
6.6442905 × 10^6
Prime Factorization
3 × 15 × 19 × 77711
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66442905
Product of the distinct prime numbers
The prime factorization of 66442905 is 3 × 15 × 19 × 77711.
Since it has a total of 4 prime factors.
4 , 3 , 74 , 86 , 686 , 370 , 522 , 18 , 93403 , 25422 , 854751 , 670701 , 3000745 , 7783786 , 94957421 , 79014599 , 273029780 , 426731255 , 2141488582 , 286362902
n×2
132885810
n×3
199328715
n×4
265771620
n×5
332214525
n÷2
33221452.5
n÷3
22147635
n÷3
16610726.25
n÷5
13288581
n2
4414659624839025
n3
2.9332281006051E+23
n4
1.9489219603184E+31
n5
1.2949203666185E+39
2 √n
8151.2517443642
3 √n
405.02596998534
4 √n
90.284282930996
5 √n
36.685101284374
1 , 3 , 15 , 19 , 45 , 57 , 285 , 855 , 77711 , 233133 , 1165665 , 1476509 , 3496995 , 4429527 , 22147635 , 66442905
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
-66442904
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 66442905 can be divided by 16 positive divisors.
The sum of these divisors (counting 66442905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101011101011010011001
3
Ternary
11122000122112100
4
Quaternary
3331131122121
5
Quinary
114002133110
6
Senary
10332034013
8
Octal
375353231
10
Decimal
66442905
12
Duodecimal
1a302909
16
Hexadecimal
3f5d699
20
Vigesimal
10f5755
36
Base36
13k3o9
md5
8b32639ba8246184ba6267a40eae0c69
sha1
2666fa3ca494c4354c4094d886371ebaff9dae66
sha256
1f31faa6cc843c139dac0eac60f2dd85780386407ce9a1ff87151fc76884129e
sha512
3172d49f9f493d6ab2c9db20335171439902c3bcb76b817e0e96b5ae6692ff1b53d13c5aa829ab21b6e01dfcc823c4eefe34ba03ebd3eb25dcd36fb8b3871f35
ripemd-160
8f277e0fade60f73b5554b4f17cf1379c14d1c59
Diameter
132885810
Circumference
417473084.46233
Area
1.3869062245494E+16
Volume
1.2286677136219E+24
Surface area
5.5476248981975E+16
Circumference
417473084.46233
Perimeter
265771620
Area
4414659624839025
Diagonal
93964457.374467
Surface area
26487957749034150
Volume
2.9332281006051E+23
Space diagonal
115082487.26247
Perimeter
199328715
Area
1.911603692086E+15
Altitude
57541243.631236
Surface area
1.911603692086E+15
Volume
3.4568424678414E+22
Height
31321485.791489