66561640 (number)

66561640 is an even 8-digits composite number following 66561639 and preceding 66561641. In scientific notation, it is written as 6.6561640 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors. There are 26121472 positive integers (up to 66561640) that are relatively prime to 66561640.

Interesting facts

Basic properties

Name

Name sixty-six million five hundred sixty-one thousand six hundred forty

Notation

Scientific notation 6.6561640 × 10^7
Engineering notation 6.6561640 × 10^6

Prime Factorization of 66561640

Prime Factorization 2 × 2 × 2 × 5 × 53 × 31397

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 16640410
Product of the distinct prime numbers

The prime factorization of 66561640 is 2 × 2 × 2 × 5 × 53 × 31397. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 2, 59, 91, 997, 810, 3224, 4496, 78685, 6196, 675993, 62430, 863636, 7046696, 52654321, 40661946, 821508669, 919258070, 5668018278, 6994792609

Basic calculations (n = 66561640)

Multiplication

n×y
n×2 133123280
n×3 199684920
n×4 266246560
n×5 332808200

Division

n÷y
n÷2 33280820
n÷3 22187213.333333
n÷3 16640410
n÷5 13312328

Exponentiation

ny
n2 4430451919489600
n3 2.9489814570238E+23
n4 1.9628904210909E+31
n5 1.306532055681E+39

Nth Root

y√n
2√n 8158.5317306486
3√n 405.26708998916
4√n 90.324590952014
5√n 36.698203346258

Divisors of 66561640

1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 31397, 62794, 125588, 156985, 251176, 313970, 627940, 1255880, 1664041, 3328082, 6656164, 8320205, 13312328, 16640410, 33280820, 66561640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66561639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66561640 can be divided by 32 positive divisors. The sum of these divisors (counting 66561640) is 1, the average is 0.03125.

Base conversion 66561640

Base System Value
2 Binary 11111101111010011001101000
3 Ternary 11122020200101221
4 Quaternary 3331322121220
5 Quinary 114014433030
6 Senary 10334351424
8 Octal 375723150
10 Decimal 66561640
12 Duodecimal 1a35b574
16 Hexadecimal 3f7a668
20 Vigesimal 10g0420
36 Base36 13mnag

Cryptographic Hash Functions

md5 6c6dbed58b96d61694a81495f12a6ac0
sha1 43e6e7341f6d2acc4619cf2b8e721e8999da3e23
sha256 2af884145a6ffc21b751a7ce961dd8675aacb64458ae77bbb86a67aa51a42172
sha512 4615f580f56a9f189229d9cfba14e16347ff69034077876e4e87a8df99f2dbfc9ca6a2efecfc101e72cd3d36f58ed5d0069576ea581fe7cfd08cb90254ec4e16
ripemd-160 49c1db8684152a2cae76d2436273b61d41dbb6af

66561640 as geometric shapes

Circle

Radius = n
Diameter 133123280
Circumference 418219118.46978
Area 1.3918675202351E+16

Sphere

Radius = n
Volume 1.2352664641278E+24
Surface area 5.5674700809405E+16
Circumference 418219118.46978

Square

Length = n
Perimeter 266246560
Area 4430451919489600
Diagonal 94132374.021796

Cube

Length = n
Surface area 26582711516937600
Volume 2.9489814570238E+23
Space diagonal 115288142.31511

Equilateral Triangle

Length = n
Perimeter 199684920
Area 1.9184419562618E+15
Altitude 57644071.157554

Triangular Pyramid

Length = n
Surface area 1.9184419562618E+15
Volume 3.4754079764248E+22
Height 31377458.007265