64496721 is an odd 8-digits composite number following 64496720
and preceding 64496722 . In scientific notation, it is written as 6.4496721 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 42997812 positive integers (up to 64496721) that are relatively prime to 64496721.
64496721 has 4 divisors, whose sum is 85995632
The reverse of 64496721 is 12769446
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-four million four hundred ninety-six thousand seven hundred twenty-one
Scientific notation
6.4496721 × 10^7
Engineering notation
6.4496721 × 10^6
Prime Factorization
3 × 21498907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
64496721
Product of the distinct prime numbers
The prime factorization of 64496721 is 3 × 21498907.
Since it has a total of 2 prime factors.
6 , 5 , 83 , 99 , 208 , 429 , 1531 , 5526 , 97546 , 81024 , 773767 , 987433 , 5233731 , 9729389 , 80215420 , 1145646 , 294328573 , 919322251 , 5156282613 , 6920780270
n×2
128993442
n×3
193490163
n×4
257986884
n×5
322483605
n÷2
32248360.5
n÷3
21498907
n÷3
16124180.25
n÷5
12899344.2
n2
4159827019751841
n3
2.682952027012E+23
n4
1.7304160834257E+31
n5
1.1160616334662E+39
2 √n
8030.9850578867
3 √n
401.03216969006
4 √n
89.615763445315
5 √n
36.467628937444
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64496720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64496721 can be divided by 4 positive divisors.
The sum of these divisors (counting 64496721) is 1, the average is 0.25.
Base
System
Value
2
Binary
11110110000010010001010001
3
Ternary
11111100202212110
4
Quaternary
3312002101101
5
Quinary
113002343341
6
Senary
10222215533
8
Octal
366022121
10
Decimal
64496721
12
Duodecimal
197245a9
16
Hexadecimal
3d82451
20
Vigesimal
10321g1
36
Base36
12edzl
md5
7d3030ca76f1d76779f6119750128d34
sha1
3241028ca97b18977e6e18f35362d44448ed40f4
sha256
ccca2bf8a5cba7ff2f8d8d1ad7a8d1bb0883f38bfc69af3f618813c8b90074ad
sha512
7f89a604eda646f83ae809c5f11a0f8909bca20ce9027b62d88588a9bfae4d652e01102accec438b36392ca4f3be37e4ec8c0c1adebd9bb0aa384542e1b5a932
ripemd-160
f722b6bde47084139b875e6f82aca65e62b8e2c2
Diameter
128993442
Circumference
405244849.74846
Area
1.3068482005457E+16
Volume
1.1238323170659E+24
Surface area
5.2273928021827E+16
Circumference
405244849.74846
Perimeter
257986884
Area
4159827019751841
Diagonal
91212137.566794
Surface area
24958962118511046
Volume
2.682952027012E+23
Space diagonal
111711597.69359
Perimeter
193490163
Area
1.801257937227E+15
Altitude
55855798.846797
Surface area
1.801257937227E+15
Volume
3.1618892864973E+22
Height
30404045.855598