668049081 is an odd 9-digits composite number following 668049080
and preceding 668049082 . In scientific notation, it is written as 6.68049081 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 381452688 positive integers (up to 668049081) that are relatively prime to 668049081.
668049081 has 16 divisors, whose sum is 1018752000
The reverse of 668049081 is 180940866
Previous prime number is 1399
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
six hundred sixty-eight million forty-nine thousand eighty-one
Scientific notation
6.68049081 × 10^8
Engineering notation
6.68049081 × 10^6
Prime Factorization
3 × 7 × 1399 × 22739
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
668049081
Product of the distinct prime numbers
The prime factorization of 668049081 is 3 × 7 × 1399 × 22739.
Since it has a total of 4 prime factors.
7 , 1 , 66 , 37 , 125 , 901 , 6543 , 8756 , 75013 , 84949 , 236484 , 905635 , 6849699 , 2586539 , 37222952 , 48048529 , 342431319 , 974749000 , 4353177407 , 9105568315
n×2
1336098162
n×3
2004147243
n×4
2672196324
n×5
3340245405
n÷2
334024540.5
n÷3
222683027
n÷3
167012270.25
n÷5
133609816.2
n2
446289574624944561
n3
2.9814334018808E+26
n4
1.9917438441891E+35
n5
1.330582644698E+44
2 √n
25846.645449652
3 √n
874.18387292611
4 √n
160.76891941433
5 √n
58.205185032262
1 , 3 , 7 , 21 , 1399 , 4197 , 9793 , 22739 , 29379 , 68217 , 159173 , 477519 , 31811861 , 95435583 , 222683027 , 668049081
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
-668049080
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 668049081 can be divided by 16 positive divisors.
The sum of these divisors (counting 668049081) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111110100011001111010111001
3
Ternary
1201120001102001120
4
Quaternary
213310121322321
5
Quinary
2332010032311
6
Senary
150142335453
8
Octal
4764317271
10
Decimal
668049081
12
Duodecimal
16788a589
16
Hexadecimal
27d19eb9
20
Vigesimal
a8f62e1
36
Base36
b1qlyx
md5
ee98a9e158cbed3a5a2172d7bf9b677c
sha1
8faa95bc79cc864fd851d4ee80f0c060c68aeb4e
sha256
d9210b88b2b5129ccb0a940828fa5fe1ce161c0ea5541145e50ea27119cda42d
sha512
35303c98e0b8dbad89c70740791721b2e58936e112b20bfa9db2535cd73c7228d795ac62db81d6a1cc9f164a131bd935ede5b1cb16ed5df28d04d1a6ec8944b8
ripemd-160
6c1f8f4402d88c633f8438e1f60a979b1816d13c
Diameter
1336098162
Circumference
4197476170.214
Area
1.4020600490154E+18
Volume
1.2488599030021E+27
Surface area
5.6082401960618E+18
Circumference
4197476170.214
Perimeter
2672196324
Area
446289574624944561
Diagonal
944764070.68108
Surface area
2677737447749667366
Volume
2.9814334018808E+26
Space diagonal
1157094950.2417
Perimeter
2004147243
Area
1.9324905453468E+17
Altitude
578547475.12085
Surface area
1.9324905453468E+17
Volume
3.5136529602099E+25
Height
314921356.89369