668727987 is an odd 9-digits composite number following 668727986
and preceding 668727988 . In scientific notation, it is written as 6.68727987 × 10^8.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 444961920 positive integers (up to 668727987) that are relatively prime to 668727987.
668727987 has 8 divisors, whose sum is 893350800
The reverse of 668727987 is 789727866
Previous prime number is 521
Is Prime? no Number parity odd Number length 9 Sum of Digits 60 Digital Root 6
Name
six hundred sixty-eight million seven hundred twenty-seven thousand nine hundred eighty-seven
Scientific notation
6.68727987 × 10^8
Engineering notation
6.68727987 × 10^6
Prime Factorization
3 × 521 × 427849
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
668727987 Product of the distinct prime numbers
The prime factorization of 668727987 is 3 × 521 × 427849.
Since it has a total of 3 prime factors.
6 , 10 , 20 , 45 , 605 , 975 , 766 , 3699 , 43415 , 29847 , 118545 , 977636 , 7285738 , 1658239 , 51839817 , 13913471 , 651391521 , 469484323 , 1788421521 , 3638578338
n×2
1337455974
n×3
2006183961
n×4
2674911948
n×5
3343639935
n÷2
334363993.5
n÷3
222909329
n÷3
167181996.75
n÷5
133745597.4
n2
447197120597072169
n3
2.9905323024908E+26
n4
1.9998526467031E+35
n5
1.3373574347264E+44
2 √n25859.775463062
3 √n874.47990294452
4 √n160.80974927865
5 √n58.217010449598
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-668727986 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 668727987 can be divided by 8 positive divisors.
The sum of these divisors (counting 668727987) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111110110111111101010110011
3
Ternary
1201121022220100020
4
Quaternary
213312333222303
5
Quinary
2332143243422
6
Senary
150205054523
8
Octal
4766775263
10
Decimal
668727987
12
Duodecimal
167b57443
16
Hexadecimal
27dbfab3
20
Vigesimal
a8jajj7
36
Base36
b255tf
md5
b66a803350a216aa31f8b4b8430ef63d
sha1
ece87cb417d1530235e4d9ec85fc4f0c4ccf86d0
sha256
47ad0292af9358eb3f14e373116bc772f0ab705b39e4de067d865e5451a5feea
sha512
5cb6f8577977c79e3d208bcd4be7a637bff269aa32d7b21cd065907809f0ddb471d9bf4b27c157ed6b9ab3bac2884f565b563e6400fc003fdc367d4e156550ea
ripemd-160
feded395bff56c9db3a881166fc7466e1d124af3
Diameter
1337455974
Circumference
4201741862.4182
Area
1.4049111887743E+18
Volume
1.2526712415771E+27
Surface area
5.6196447550971E+18
Circumference
4201741862.4182
Perimeter
2674911948
Area
447197120597072169
Diagonal
945724188.75386
Surface area
2683182723582433014
Volume
2.9905323024908E+26
Space diagonal
1158270849.9273
Perimeter
2006183961
Area
1.9364203346816E+17
Altitude
579135424.96363
Surface area
1.9364203346816E+17
Volume
3.5243761174144E+25
Height
315241396.25129