668049691 is an odd 9-digits composite number following 668049690
and preceding 668049692 . In scientific notation, it is written as 6.68049691 × 10^8.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 667025992 positive integers (up to 668049691) that are relatively prime to 668049691.
668049691 has 4 divisors, whose sum is 669073392
The reverse of 668049691 is 196940866
Previous prime number is 653
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
six hundred sixty-eight million forty-nine thousand six hundred ninety-one
Scientific notation
6.68049691 × 10^8
Engineering notation
6.68049691 × 10^6
Prime Factorization
653 × 1023047
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
668049691
Product of the distinct prime numbers
The prime factorization of 668049691 is 653 × 1023047.
Since it has a total of 2 prime factors.
6 , 9 , 47 , 47 , 382 , 982 , 3295 , 8368 , 64184 , 98941 , 453651 , 675620 , 2420488 , 2644377 , 54331464 , 48385684 , 942943653 , 505343649 , 9033314036 , 9514293420
n×2
1336099382
n×3
2004149073
n×4
2672198764
n×5
3340248455
n÷2
334024845.5
n÷3
222683230.33333
n÷3
167012422.75
n÷5
133609938.2
n2
446290389645195481
n3
2.9814415689874E+26
n4
1.9917511188966E+35
n5
1.3305887195278E+44
2 √n
25846.65725002
3 √n
874.18413900038
4 √n
160.76895611411
5 √n
58.205195661766
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-668049690
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 668049691 can be divided by 4 positive divisors.
The sum of these divisors (counting 668049691) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111110100011010000100011011
3
Ternary
1201120001102220011
4
Quaternary
213310122010123
5
Quinary
2332010042231
6
Senary
150142342351
8
Octal
4764320433
10
Decimal
668049691
12
Duodecimal
16788a9b7
16
Hexadecimal
27d1a11b
20
Vigesimal
a8f644b
36
Base36
b1qmfv
md5
b6acbf2c78b54d08067232f0ba5d82c8
sha1
4c8d4f7a794c8581387256fafb1f72b08d52720a
sha256
1201a21dc7f6073811c4eaa0d2ab6629174ecf12b2728d4ee9c6b3a829efbefc
sha512
d90b28f750d581fedaca78a58a9fde46bc26d144e27054bc3fd272c2ede087b4dc69eb4517ac9bd9f098777ebbd9c82d419fc0aab48bf7949667645a3acfbc21
ripemd-160
2f7a0153868cdd4cefd69ddf1fd2ea32da599889
Diameter
1336099382
Circumference
4197480002.9571
Area
1.4020626094771E+18
Volume
1.2488633240317E+27
Surface area
5.6082504379083E+18
Circumference
4197480002.9571
Perimeter
2672198764
Area
446290389645195481
Diagonal
944764933.35136
Surface area
2677742337871172886
Volume
2.9814415689874E+26
Space diagonal
1157096006.7927
Perimeter
2004149073
Area
1.932494074488E+17
Altitude
578548003.39634
Surface area
1.932494074488E+17
Volume
3.5136625852374E+25
Height
314921644.45045