660993985 is an odd 9-digits composite number following 660993984
and preceding 660993986 . In scientific notation, it is written as 6.60993985 × 10^8.
The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors.
There are 522547200 positive integers (up to 660993985) that are relatively prime to 660993985.
660993985 has 16 divisors, whose sum is 802604880
The reverse of 660993985 is 589399066
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 55
Digital Root 1
Name
six hundred sixty million nine hundred ninety-three thousand nine hundred eighty-five
Scientific notation
6.60993985 × 10^8
Engineering notation
6.60993985 × 10^6
Prime Factorization
5 × 433 × 109 × 2801
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
660993985
Product of the distinct prime numbers
The prime factorization of 660993985 is 5 × 433 × 109 × 2801.
Since it has a total of 4 prime factors.
5 , 6 , 82 , 78 , 465 , 872 , 2919 , 8873 , 22570 , 39951 , 922238 , 729274 , 7151156 , 6534670 , 1146921 , 11922211 , 709416957 , 654172817 , 552094195 , 2160041043
n×2
1321987970
n×3
1982981955
n×4
2643975940
n×5
3304969925
n÷2
330496992.5
n÷3
220331328.33333
n÷3
165248496.25
n÷5
132198797
n2
436913048206180225
n3
2.887968968323E+26
n4
1.9089301169282E+35
n5
1.2617913250749E+44
2 √n
25709.803285906
3 √n
871.0956315755
4 √n
160.34276811227
5 √n
58.081724366703
1 , 5 , 109 , 433 , 545 , 2165 , 2801 , 14005 , 47197 , 235985 , 305309 , 1212833 , 1526545 , 6064165 , 132198797 , 660993985
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
-660993984
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 660993985 can be divided by 16 positive divisors.
The sum of these divisors (counting 660993985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111011001011111011111000001
3
Ternary
1201001202222021201
4
Quaternary
213121133133001
5
Quinary
2323203301420
6
Senary
145331221201
8
Octal
4731373701
10
Decimal
660993985
12
Duodecimal
165447801
16
Hexadecimal
2765f7c1
20
Vigesimal
a6b44j5
36
Base36
axje81
md5
0c03c4f8e5f9e9f30ea5ecc4f1c7b3df
sha1
abad5adef668614a56905a7ac52cbe9ff04b5786
sha256
9d9321dde474accf5807a11c18588d35ecbf930c7cdd87d39f9c7798e37943c2
sha512
92cff227e82616d29f2fdda9caa8a472d1b17a992984e8b3f23a07bb26856955eb4dd6d36f21e3b87717c0398e652c24f9e63655dec53050c2c9942aae7b8f88
ripemd-160
ba28f2d84d522b4693b614db32d36b2cc8959715
Diameter
1321987970
Circumference
4153147694.6861
Area
1.3726028225021E+18
Volume
1.2097096126238E+27
Surface area
5.4904112900082E+18
Circumference
4153147694.6861
Perimeter
2643975940
Area
436913048206180225
Diagonal
934786658.23404
Surface area
2621478289237081350
Volume
2.887968968323E+26
Space diagonal
1144875165.5174
Perimeter
1982981955
Area
1.8918889949572E+17
Altitude
572437582.75871
Surface area
1.8918889949572E+17
Volume
3.4035040689292E+25
Height
311595552.74468