66165721 is an odd 8-digits prime number following 66165720
and preceding 66165722 . In scientific notation, it is written as 6.6165721 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 66165720 positive integers (up to 66165721) that are relatively prime to 66165721.
66165721 has 2 divisors, whose sum is 66165722
The reverse of 66165721 is 12756166
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
sixty-six million one hundred sixty-five thousand seven hundred twenty-one
Scientific notation
6.6165721 × 10^7
Engineering notation
6.6165721 × 10^6
Prime Factorization
66165721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
66165721
Product of the distinct prime numbers
The prime factorization of 66165721 is 66165721.
Since it has a total of 1 prime factors.
2 , 5 , 82 , 82 , 456 , 635 , 181 , 3869 , 8658 , 28192 , 212273 , 71203 , 9198750 , 9144632 , 61034781 , 20964895 , 777730723 , 908341037 , 5256911833 , 7341236879
n×2
132331442
n×3
198497163
n×4
264662884
n×5
330828605
n÷2
33082860.5
n÷3
22055240.333333
n÷3
16541430.25
n÷5
13233144.2
n2
4377902635449841
n3
2.8966708434234E+23
n4
1.9166031485479E+31
n5
1.2681342919454E+39
2 √n
8134.2314326555
3 √n
404.46196094138
4 √n
90.18997412493
5 √n
36.654441776107
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
66165722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
33082861
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
8134.2314941241
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999697729
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66165721 can be divided by 2 positive divisors.
The sum of these divisors (counting 66165721) is 66165722, the average is 33082861.
Base
System
Value
2
Binary
11111100011001101111011001
3
Ternary
11121111120022021
4
Quaternary
3330121233121
5
Quinary
113414300341
6
Senary
10322054441
8
Octal
374315731
10
Decimal
66165721
12
Duodecimal
1a1aa421
16
Hexadecimal
3f19bd9
20
Vigesimal
10dae61
36
Base36
13e5sp
md5
8e3934adfa2d2c7126b482b98ebaf27b
sha1
714dca3cec530efbf24ea1d23c21b605d0f84ed2
sha256
50ce52f59ab52f9d1a4f3a436558864c40a863521d0102803d32008ad65ad1fc
sha512
e42b4cb1b6e4723ddd768d91bc13e356a8d32ae449784bd050a41619bc78ad0eff136ef36528465970c230575c6c5aed73c2539b0ebf6f9b5a7d67ba231a9a4f
ripemd-160
db452af24ab0e8dd112a7246a4f3e7c7d65e6795
Diameter
132331442
Circumference
415731486.02614
Area
1.3753586757661E+16
Volume
1.2133546455422E+24
Surface area
5.5014347030642E+16
Circumference
415731486.02614
Perimeter
264662884
Area
4377902635449841
Diagonal
93572460.002394
Surface area
26267415812699046
Volume
2.8966708434234E+23
Space diagonal
114602390.49143
Perimeter
198497163
Area
1.8956874487972E+15
Altitude
57301195.245714
Surface area
1.8956874487972E+15
Volume
3.4137593270834E+22
Height
31190820.000798