664742721 is an odd 9-digits composite number following 664742720
and preceding 664742722 . In scientific notation, it is written as 6.64742721 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 395140608 positive integers (up to 664742721) that are relatively prime to 664742721.
664742721 has 16 divisors, whose sum is 987854400
The reverse of 664742721 is 127247466
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
six hundred sixty-four million seven hundred forty-two thousand seven hundred twenty-one
Scientific notation
6.64742721 × 10^8
Engineering notation
6.64742721 × 10^6
Prime Factorization
3 × 19 × 17 × 686009
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
664742721
Product of the distinct prime numbers
The prime factorization of 664742721 is 3 × 19 × 17 × 686009.
Since it has a total of 4 prime factors.
3 , 2 , 62 , 71 , 757 , 880 , 2864 , 7373 , 82576 , 67154 , 772474 , 678252 , 7928377 , 4939001 , 39778932 , 34281129 , 102716796 , 432369680 , 5685119127 , 8665758287
n×2
1329485442
n×3
1994228163
n×4
2658970884
n×5
3323713605
n÷2
332371360.5
n÷3
221580907
n÷3
166185680.25
n÷5
132948544.2
n2
441882885122483841
n3
2.9373843141965E+26
n4
1.9526048416417E+35
n5
1.2979798554707E+44
2 √n
25782.605008028
3 √n
872.73929435875
4 √n
160.56962666715
5 √n
58.147455914336
1 , 3 , 17 , 19 , 51 , 57 , 323 , 969 , 686009 , 2058027 , 11662153 , 13034171 , 34986459 , 39102513 , 221580907 , 664742721
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
-664742720
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 664742721 can be divided by 16 positive divisors.
The sum of these divisors (counting 664742721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111100111110010101101000001
3
Ternary
1201022211102120210
4
Quaternary
213213302231001
5
Quinary
2330133231341
6
Senary
145543424333
8
Octal
4747625501
10
Decimal
664742721
12
Duodecimal
1667550a9
16
Hexadecimal
279f2b41
20
Vigesimal
a7ecgg1
36
Base36
azrqrl
md5
b719e6500612653daf7d2354f63bb44c
sha1
00d2b9b2b85f5f79ea29070faf461316d18616b1
sha256
dc143ace247492e481016a430b87b1245ba335480b217b74acf88ab93a9f2b7e
sha512
a9b2fa9b28c79a3450d2ea15802c4c09a58da975d3d67c96c91f1acd19caf654ba1cd373cfe340e9e6195022d807a6733eda676d3989df6e74b7d130baf4dec0
ripemd-160
c3c2c44b000d382660b72b2d0573ade1db4a4b0c
Diameter
1329485442
Circumference
4176701697.6418
Area
1.3882160256479E+18
Volume
1.2304086643E+27
Surface area
5.5528641025914E+18
Circumference
4176701697.6418
Perimeter
2658970884
Area
441882885122483841
Diagonal
940088171.52699
Surface area
2651297310734903046
Volume
2.9373843141965E+26
Space diagonal
1151368166.7336
Perimeter
1994228163
Area
1.9134090200682E+17
Altitude
575684083.36679
Surface area
1.9134090200682E+17
Volume
3.4617406125322E+25
Height
313362723.84233