664540981 is an odd 9-digits composite number following 664540980
and preceding 664540982 . In scientific notation, it is written as 6.64540981 × 10^8.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 613250352 positive integers (up to 664540981) that are relatively prime to 664540981.
664540981 has 8 divisors, whose sum is 715860320
The reverse of 664540981 is 189045466
Previous prime number is 6619
Is Prime? no Number parity odd Number length 9 Sum of Digits 43 Digital Root 7
Name
six hundred sixty-four million five hundred forty thousand nine hundred eighty-one
Scientific notation
6.64540981 × 10^8
Engineering notation
6.64540981 × 10^6
Prime Factorization
13 × 6619 × 7723
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
664540981 Product of the distinct prime numbers
The prime factorization of 664540981 is 13 × 6619 × 7723.
Since it has a total of 3 prime factors.
3 , 6 , 6 , 24 , 789 , 477 , 8822 , 4221 , 82635 , 45386 , 416083 , 130572 , 5779928 , 4074118 , 20562013 , 77597429 , 959385633 , 644472584 , 4285597682 , 3690694120
n×2
1329081962
n×3
1993622943
n×4
2658163924
n×5
3322704905
n÷2
332270490.5
n÷3
221513660.33333
n÷3
166135245.25
n÷5
132908196.2
n2
441614715428442361
n3
2.9347107621485E+26
n4
1.9502355688294E+35
n5
1.296011458091E+44
2 √n25778.692383439
3 √n872.65099742125
4 √n160.55744262861
5 √n58.143926099964
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
-664540980 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 664540981 can be divided by 8 positive divisors.
The sum of these divisors (counting 664540981) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111100111000001011100110101
3
Ternary
1201022110011211221
4
Quaternary
213213001130311
5
Quinary
2330110302411
6
Senary
145535230341
8
Octal
4747013465
10
Decimal
664540981
12
Duodecimal
1666783b1
16
Hexadecimal
279c1735
20
Vigesimal
a7d7c91
36
Base36
aznf3p
md5
12e2b7620df312595b202bee212f0298
sha1
9b4221d30bbf5d565b71106e8a7e5e62bcfc87d5
sha256
5c303f93adae404e3694d589b5106a7d6d9c161db197b4cdd3e18f91707f10c1
sha512
de7965cb75da5d4de17c07a57e7406a7d9a78d1b862670b476516074597d61d5bf4594e0a306b859efa47e5bdbd5eeee13bf127c2d1d64ad55190a9ea087686a
ripemd-160
d4e0be39c12ad46609cc3a759ad0e20d79f1d3f2
Diameter
1329081962
Circumference
4175434127.8379
Area
1.3873735457071E+18
Volume
1.2292887694369E+27
Surface area
5.5494941828286E+18
Circumference
4175434127.8379
Perimeter
2658163924
Area
441614715428442361
Diagonal
939802868.08292
Surface area
2649688292570654166
Volume
2.9347107621485E+26
Space diagonal
1151018742.8037
Perimeter
1993622943
Area
1.9122478112303E+17
Altitude
575509371.40183
Surface area
1.9122478112303E+17
Volume
3.4585898012273E+25
Height
313267622.69431