664721894 is an even 9-digits composite number following 664721893
and preceding 664721895 . In scientific notation, it is written as 6.64721894 × 10^8.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 329311656 positive integers (up to 664721894) that are relatively prime to 664721894.
664721894 has 8 divisors, whose sum is 1006230720
The reverse of 664721894 is 498127466
Previous prime number is 109
Is Prime? no Number parity even Number length 9 Sum of Digits 47 Digital Root 2
Name
six hundred sixty-four million seven hundred twenty-one thousand eight hundred ninety-four
Scientific notation
6.64721894 × 10^8
Engineering notation
6.64721894 × 10^6
Prime Factorization
2 × 109 × 3049183
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
664721894 Product of the distinct prime numbers
The prime factorization of 664721894 is 2 × 109 × 3049183.
Since it has a total of 3 prime factors.
3 , 6 , 98 , 96 , 215 , 973 , 8947 , 1059 , 72597 , 78651 , 319417 , 848461 , 7421363 , 7390327 , 12540172 , 76839116 , 721875955 , 813504022 , 3261756338 , 5824069714
n×2
1329443788
n×3
1994165682
n×4
2658887576
n×5
3323609470
n÷2
332360947
n÷3
221573964.66667
n÷3
166180473.5
n÷5
132944378.8
n2
441855196362947236
n3
2.9371082300012E+26
n4
1.9523601455294E+35
n5
1.2977765337064E+44
2 √n25782.201108517
3 √n872.730179689
4 √n160.5683689539
5 √n58.14709154713
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
-664721893 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 664721894 can be divided by 8 positive divisors.
The sum of these divisors (counting 664721894) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111100111101101100111100110
3
Ternary
1201022210101000102
4
Quaternary
213213231213212
5
Quinary
2330132100034
6
Senary
145543144102
8
Octal
4747554746
10
Decimal
664721894
12
Duodecimal
166745032
16
Hexadecimal
279ed9e6
20
Vigesimal
a7ea4ee
36
Base36
azrap2
md5
11f4e9480a798e5dd2e5408d388e51a0
sha1
40114431e6ff9b233c603d122225a61a2c392950
sha256
832b48dae807419151173bf20ba7fec5af645ba5a30778924dcb200486e800e9
sha512
0f76b6dc46a3bf58e374c2be25038a6f0e4c6e8e103411adacba156c78585e8fdb98b9f736387ee16b347d39d2573465904ed9b3e0341ba37d577e23839ea9da
ripemd-160
0e2687b32880df2482862f4e999557e17aa74666
Diameter
1329443788
Circumference
4176570837.7414
Area
1.3881290388443E+18
Volume
1.2302930184227E+27
Surface area
5.5525161553772E+18
Circumference
4176570837.7414
Perimeter
2658887576
Area
441855196362947236
Diagonal
940058717.70113
Surface area
2651131178177683416
Volume
2.9371082300012E+26
Space diagonal
1151332093.3114
Perimeter
1994165682
Area
1.9132891242224E+17
Altitude
575666046.65571
Surface area
1.9132891242224E+17
Volume
3.4614152441878E+25
Height
313352905.90038