668727985 is an odd 9-digits composite number following 668727984
and preceding 668727986 . In scientific notation, it is written as 6.68727985 × 10^8.
The sum of its digits is 58. It has a total of 4 prime factors and 16 positive divisors.
There are 522911808 positive integers (up to 668727985) that are relatively prime to 668727985.
668727985 has 16 divisors, whose sum is 820624896
The reverse of 668727985 is 589727866
Previous prime number is 1063
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 58
Digital Root 4
Name
six hundred sixty-eight million seven hundred twenty-seven thousand nine hundred eighty-five
Scientific notation
6.68727985 × 10^8
Engineering notation
6.68727985 × 10^6
Prime Factorization
5 × 47 × 1063 × 2677
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
668727985
Product of the distinct prime numbers
The prime factorization of 668727985 is 5 × 47 × 1063 × 2677.
Since it has a total of 4 prime factors.
8 , 3 , 94 , 82 , 115 , 987 , 8468 , 2277 , 60136 , 62400 , 610988 , 78252 , 6006682 , 6949613 , 62898922 , 58813346 , 730931004 , 239716183 , 6526937757 , 254888537
n×2
1337455970
n×3
2006183955
n×4
2674911940
n×5
3343639925
n÷2
334363992.5
n÷3
222909328.33333
n÷3
167181996.25
n÷5
133745597
n2
447197117922160225
n3
2.9905322756589E+26
n4
1.9998526227789E+35
n5
1.3373574147279E+44
2 √n
25859.775424392
3 √n
874.47990207274
4 √n
160.80974915841
5 √n
58.217010414776
1 , 5 , 47 , 235 , 1063 , 2677 , 5315 , 13385 , 49961 , 125819 , 249805 , 629095 , 2845651 , 14228255 , 133745597 , 668727985
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
-668727984
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 668727985 can be divided by 16 positive divisors.
The sum of these divisors (counting 668727985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111110110111111101010110001
3
Ternary
1201121022220100011
4
Quaternary
213312333222301
5
Quinary
2332143243420
6
Senary
150205054521
8
Octal
4766775261
10
Decimal
668727985
12
Duodecimal
167b57441
16
Hexadecimal
27dbfab1
20
Vigesimal
a8jajj5
36
Base36
b255td
md5
30b4a91ac035b5d8f13852affbdb4f0f
sha1
f5d2a82b9513b9f5719a5610b2e523c13903967b
sha256
2ffcdc3563e9fb86798cb3375dd720aaf8ec9383c8b54d7ae2d5d00fe45cdb7e
sha512
c86ad77b4992e48cb7a58c4d80433b66e588991bf73da08084eca4260411a6093d4b826c304c84298a6c3a9d6fe2f805e10b5af960170e8b32872cd1823fc24a
ripemd-160
edcb58e0247a01fc4a286eff5fa9acc49c21b29b
Diameter
1337455970
Circumference
4201741849.8518
Area
1.4049111803708E+18
Volume
1.2526712303378E+27
Surface area
5.6196447214831E+18
Circumference
4201741849.8518
Perimeter
2674911940
Area
447197117922160225
Diagonal
945724185.92543
Surface area
2683182707532961350
Volume
2.9905322756589E+26
Space diagonal
1158270846.4632
Perimeter
2006183955
Area
1.9364203230989E+17
Altitude
579135423.23158
Surface area
1.9364203230989E+17
Volume
3.5243760857928E+25
Height
315241395.30848