66409920 is an even 8-digits composite number following 66409919
and preceding 66409921 . In scientific notation, it is written as 6.6409920 × 10^7.
The sum of its digits is 36. It has a total of 8 prime factors and 28 positive divisors.
There are 17708544 positive integers (up to 66409920) that are relatively prime to 66409920.
66409920 has 28 divisors, whose sum is 134716520
The reverse of 66409920 is 02990466
Previous prime number is 45
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixty-six million four hundred nine thousand nine hundred twenty
Scientific notation
6.6409920 × 10^7
Engineering notation
6.6409920 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 45 × 23059
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2075310
Product of the distinct prime numbers
The prime factorization of 66409920 is 2 × 2 × 2 × 2 × 2 × 2 × 45 × 23059.
Since it has a total of 8 prime factors.
8 , 3 , 57 , 22 , 460 , 503 , 2035 , 7900 , 1833 , 55236 , 410054 , 253056 , 5218719 , 6359880 , 81881086 , 57766147 , 710025052 , 88037840 , 700685757 , 4236137153
n×2
132819840
n×3
199229760
n×4
265639680
n×5
332049600
n÷2
33204960
n÷3
22136640
n÷3
16602480
n÷5
13281984
n2
4410277474406400
n3
2.9288617425313E+23
n4
1.9450547401256E+31
n5
1.2917092968737E+39
2 √n
8149.2281843129
3 √n
404.95893502246
4 √n
90.273075633396
5 √n
36.681458161225
1 , 2 , 4 , 8 , 16 , 32 , 45 , 64 , 90 , 180 , 360 , 720 , 1440 , 2880 , 23059 , 46118 , 92236 , 184472 , 368944 , 737888 , 1037655 , 1475776 , 2075310 , 4150620 , 8301240 , 16602480 , 33204960 , 66409920
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66409919
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66409920 can be divided by 28 positive divisors.
The sum of these divisors (counting 66409920) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
11111101010101010111000000
3
Ternary
11121221222021200
4
Quaternary
3331111113000
5
Quinary
114000104140
6
Senary
10331221200
8
Octal
375252700
10
Decimal
66409920
12
Duodecimal
1a2a7800
16
Hexadecimal
3f555c0
20
Vigesimal
10f14g0
36
Base36
13je80
md5
7e4fdb7479c68cf9ae63191b9fef348b
sha1
0ea7b0b253d68f6ed05023e20a77407513cb7740
sha256
6cbe643057f06c951842746834aabce7e34a81ff38ce8dca204eea6764abae98
sha512
74f7a1f26a2a7e1a593620380fdb67f94ace400635bdc693c2eed82bc567dceba457a684a1b944cfe982a7b497332538118c6b8f061e7c8b4ba25a859f5308ba
ripemd-160
fbb65f6fff57f7b51a18415777080d6de35a1330
Diameter
132819840
Circumference
417265833.59497
Area
1.3855295313888E+16
Volume
1.2268387378289E+24
Surface area
5.5421181255551E+16
Circumference
417265833.59497
Perimeter
265639680
Area
4410277474406400
Diagonal
93917809.540112
Surface area
26461664846438400
Volume
2.9288617425313E+23
Space diagonal
115025355.56658
Perimeter
199229760
Area
1.9097061652871E+15
Altitude
57512677.783292
Surface area
1.9097061652871E+15
Volume
3.4516966655029E+22
Height
31305936.513371