66409938 is an even 8-digits composite number following 66409937
and preceding 66409939 . In scientific notation, it is written as 6.6409938 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 18974232 positive integers (up to 66409938) that are relatively prime to 66409938.
66409938 has 16 divisors, whose sum is 126495360
The reverse of 66409938 is 83990466
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixty-six million four hundred nine thousand nine hundred thirty-eight
Scientific notation
6.6409938 × 10^7
Engineering notation
6.6409938 × 10^6
Prime Factorization
2 × 7 × 9 × 527063
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66409938
Product of the distinct prime numbers
The prime factorization of 66409938 is 2 × 7 × 9 × 527063.
Since it has a total of 4 prime factors.
4 , 10 , 16 , 37 , 322 , 421 , 663 , 1988 , 80 , 51111 , 261050 , 189448 , 6262472 , 2367954 , 36470365 , 80572293 , 632676105 , 899274738 , 4659976791 , 6940436962
n×2
132819876
n×3
199229814
n×4
265639752
n×5
332049690
n÷2
33204969
n÷3
22136646
n÷3
16602484.5
n÷5
13281987.6
n2
4410279865163844
n3
2.9288641240818E+23
n4
1.945056848907E+31
n5
1.2917110474239E+39
2 √n
8149.2292887119
3 √n
404.95897160966
4 √n
90.273081750386
5 √n
36.681460149681
1 , 2 , 7 , 9 , 14 , 18 , 63 , 126 , 527063 , 1054126 , 3689441 , 4743567 , 7378882 , 9487134 , 33204969 , 66409938
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
-66409937
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 66409938 can be divided by 16 positive divisors.
The sum of these divisors (counting 66409938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101010101010111010010
3
Ternary
11121221222022100
4
Quaternary
3331111113102
5
Quinary
114000104223
6
Senary
10331221230
8
Octal
375252722
10
Decimal
66409938
12
Duodecimal
1a2a7816
16
Hexadecimal
3f555d2
20
Vigesimal
10f14gi
36
Base36
13je8i
md5
3bacd94d27d832a3d2d17347259900f6
sha1
c2502068f9982a31b00bbe902c26218afceb1fd5
sha256
5b435d12ebc883e432edeb4cd1bfdc840ac7db108dd22e2ee9e461a137fe6933
sha512
2b686430dee66660b4afc15e95bb440dad635b8c73527ebf643098710fc91a21973d47f6ea82e74c52f604163345f0bc0e7f81c50b0bf5fa448d10b65b5611e6
ripemd-160
4e153c416aef7b01d3752f971e715cec9d6873ce
Diameter
132819876
Circumference
417265946.69231
Area
1.3855302824674E+16
Volume
1.2268397354104E+24
Surface area
5.5421211298695E+16
Circumference
417265946.69231
Perimeter
265639752
Area
4410279865163844
Diagonal
93917834.995956
Surface area
26461679190983064
Volume
2.9288641240818E+23
Space diagonal
115025386.7435
Perimeter
199229814
Area
1.9097072005154E+15
Altitude
57512693.37175
Surface area
1.9097072005154E+15
Volume
3.4516994721871E+22
Height
31305944.998652