664721893 is an odd 9-digits composite number following 664721892
and preceding 664721894 . In scientific notation, it is written as 6.64721893 × 10^8.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 589940800 positive integers (up to 664721893) that are relatively prime to 664721893.
664721893 has 16 divisors, whose sum is 742452480
The reverse of 664721893 is 398127466
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
six hundred sixty-four million seven hundred twenty-one thousand eight hundred ninety-three
Scientific notation
6.64721893 × 10^8
Engineering notation
6.64721893 × 10^6
Prime Factorization
11 × 47 × 461 × 2789
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
664721893
Product of the distinct prime numbers
The prime factorization of 664721893 is 11 × 47 × 461 × 2789.
Since it has a total of 4 prime factors.
7 , 7 , 19 , 12 , 546 , 898 , 2848 , 1591 , 79440 , 66809 , 988688 , 99920 , 4380211 , 1582687 , 91946378 , 37699730 , 63562700 , 446529143 , 3849841113 , 7085553060
n×2
1329443786
n×3
1994165679
n×4
2658887572
n×5
3323609465
n÷2
332360946.5
n÷3
221573964.33333
n÷3
166180473.25
n÷5
132944378.6
n2
441855195033503449
n3
2.9371082167455E+26
n4
1.952360133781E+35
n5
1.2977765239446E+44
2 √n
25782.201089123
3 √n
872.73017925135
4 √n
160.56836889351
5 √n
58.147091529634
1 , 11 , 47 , 461 , 517 , 2789 , 5071 , 21667 , 30679 , 131083 , 238337 , 1285729 , 1441913 , 14143019 , 60429263 , 664721893
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
-664721892
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 664721893 can be divided by 16 positive divisors.
The sum of these divisors (counting 664721893) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111100111101101100111100101
3
Ternary
1201022210101000101
4
Quaternary
213213231213211
5
Quinary
2330132100033
6
Senary
145543144101
8
Octal
4747554745
10
Decimal
664721893
12
Duodecimal
166745031
16
Hexadecimal
279ed9e5
20
Vigesimal
a7ea4ed
36
Base36
azrap1
md5
40d24b36710dd8c444529a1616a2de8b
sha1
2a4bddad2183c20d0b30d10b295bb983093a8e55
sha256
ab3c1d5fa9d1ea4e42d724642826e2b34439f2d66beae63040770813d5635bce
sha512
6ce0ef30c8f5d63626af870b633b336a4e31cac1914d6281edf6e652d6e000d7bcf00a47d1ce085e7a827bbfade727ee072abcb431d7e4380ec57732db72679b
ripemd-160
fc69c4f595675cba38ad24db64f9fe860a606ffb
Diameter
1329443786
Circumference
4176570831.4582
Area
1.3881290346677E+18
Volume
1.2302930128701E+27
Surface area
5.552516138671E+18
Circumference
4176570831.4582
Perimeter
2658887572
Area
441855195033503449
Diagonal
940058716.28692
Surface area
2651131170201020694
Volume
2.9371082167455E+26
Space diagonal
1151332091.5794
Perimeter
1994165679
Area
1.9132891184657E+17
Altitude
575666045.78968
Surface area
1.9132891184657E+17
Volume
3.4614152285658E+25
Height
313352905.42897