64456721 is an odd 8-digits composite number following 64456720
and preceding 64456722 . In scientific notation, it is written as 6.4456721 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 51701328 positive integers (up to 64456721) that are relatively prime to 64456721.
64456721 has 16 divisors, whose sum is 78489600
The reverse of 64456721 is 12765446
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixty-four million four hundred fifty-six thousand seven hundred twenty-one
Scientific notation
6.4456721 × 10^7
Engineering notation
6.4456721 × 10^6
Prime Factorization
7 × 83 × 19 × 5839
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64456721
Product of the distinct prime numbers
The prime factorization of 64456721 is 7 × 83 × 19 × 5839.
Since it has a total of 4 prime factors.
5 , 4 , 18 , 15 , 924 , 148 , 8690 , 8386 , 2846 , 23737 , 531620 , 789161 , 9348525 , 7228942 , 89599811 , 86059317 , 945016413 , 640753116 , 1813636093 , 3757460558
n×2
128913442
n×3
193370163
n×4
257826884
n×5
322283605
n÷2
32228360.5
n÷3
21485573.666667
n÷3
16114180.25
n÷5
12891344.2
n2
4154668882071841
n3
2.6779633297909E+23
n4
1.7261273519656E+31
n5
1.1126050913612E+39
2 √n
8028.4943171182
3 √n
400.94924762375
4 √n
89.601865589497
5 √n
36.463104468176
1 , 7 , 19 , 83 , 133 , 581 , 1577 , 5839 , 11039 , 40873 , 110941 , 484637 , 776587 , 3392459 , 9208103 , 64456721
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
-64456720
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 64456721 can be divided by 16 positive divisors.
The sum of these divisors (counting 64456721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110101111000100000010001
3
Ternary
11111021201222222
4
Quaternary
3311320200101
5
Quinary
113000103341
6
Senary
10221310425
8
Octal
365704021
10
Decimal
64456721
12
Duodecimal
19705415
16
Hexadecimal
3d78811
20
Vigesimal
102h1g1
36
Base36
12dj4h
md5
4d01a38cae125b9e7b47782bc4dffd45
sha1
14988dbdd9a0837e40cc67d83a8197ddf4583626
sha256
be29f6ab1471dce53862883f77b8adddb9fcedd6bca30bbeddac11d0baeda3c3
sha512
b47767b018a79a3f97374e36d436b4fe0df00f8b93cfefa43b73f5e81c87d0c242c69549032e24c2f9293194a633c435bc046e52b9626fdf23fa8ce3fd697b96
ripemd-160
53f65ee411fe342e2da9944c18d3da48649e1464
Diameter
128913442
Circumference
404993522.33617
Area
1.3052277238015E+16
Volume
1.1217426564605E+24
Surface area
5.220910895206E+16
Circumference
404993522.33617
Perimeter
257826884
Area
4154668882071841
Diagonal
91155569.024299
Surface area
24928013292431046
Volume
2.6779633297909E+23
Space diagonal
111642315.66129
Perimeter
193370163
Area
1.7990243980935E+15
Altitude
55821157.830646
Surface area
1.7990243980935E+15
Volume
3.15601005044E+22
Height
30385189.674766