66388640 (number)

66388640 is an even 8-digits composite number following 66388639 and preceding 66388641. In scientific notation, it is written as 6.6388640 × 10^7. The sum of its digits is 41. It has a total of 7 prime factors and 24 positive divisors. There are 26555392 positive integers (up to 66388640) that are relatively prime to 66388640.

Interesting facts

Basic properties

Name

Name sixty-six million three hundred eighty-eight thousand six hundred forty

Notation

Scientific notation 6.6388640 × 10^7
Engineering notation 6.6388640 × 10^6

Prime Factorization of 66388640

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 414929

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 4149290
Product of the distinct prime numbers

The prime factorization of 66388640 is 2 × 2 × 2 × 2 × 2 × 5 × 414929. Since it has a total of 7 prime factors.

Most popular turbo-numbers

10, 9, 33, 78, 616, 441, 8319, 3401, 70356, 70828, 395538, 30000, 5300052, 1724335, 33417473, 88890307, 572790416, 610527758, 1408208690, 8966701199

Basic calculations (n = 66388640)

Multiplication

n×y
n×2 132777280
n×3 199165920
n×4 265554560
n×5 331943200

Division

n÷y
n÷2 33194320
n÷3 22129546.666667
n÷3 16597160
n÷5 13277728

Exponentiation

ny
n2 4407451521049600
n3 2.9260471234841E+23
n4 1.9425628910402E+31
n5 1.2896410845063E+39

Nth Root

y√n
2√n 8147.9224345842
3√n 404.91567619029
4√n 90.265843122325
5√n 36.679107062175

Divisors of 66388640

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 414929, 829858, 1659716, 2074645, 3319432, 4149290, 6638864, 8298580, 13277728, 16597160, 33194320, 66388640

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66388639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66388640 can be divided by 24 positive divisors. The sum of these divisors (counting 66388640) is 1, the average is 0.041666666666667.

Base conversion 66388640

Base System Value
2 Binary 11111101010000001010100000
3 Ternary 11121220220002112
4 Quaternary 3331100022200
5 Quinary 113443414030
6 Senary 10330534452
8 Octal 375201240
10 Decimal 66388640
12 Duodecimal 1a297428
16 Hexadecimal 3f502a0
20 Vigesimal 10eibc0
36 Base36 13ixsw

Cryptographic Hash Functions

md5 42f79269ef05505c6f9fd340c2db35cf
sha1 0983428241cc0e906579b0cf6bebaa89990d232b
sha256 cf6c5d506e144423ea226beed49a7f72085ca0df3220c537d824e167faad0d0f
sha512 057fb88b2e1254763e8da61c5d1b515c9df84dd101b212ac917ef38eedfa6a8c17b501e585b514b1566b255a5d7ac3bce3fbc7d68f85aa9e8e93ecfac7031641
ripemd-160 080c25228d1a382fc4cb7dba5eb6f49cc3851b13

66388640 as geometric shapes

Circle

Radius = n
Diameter 132777280
Circumference 417132127.41163
Area 1.3846417319583E+16

Sphere

Radius = n
Volume 1.2256597529594E+24
Surface area 5.538566927833E+16
Circumference 417132127.41163

Square

Length = n
Perimeter 265554560
Area 4407451521049600
Diagonal 93887715.075505

Cube

Length = n
Surface area 26444709126297600
Volume 2.9260471234841E+23
Space diagonal 114988497.5254

Equilateral Triangle

Length = n
Perimeter 199165920
Area 1.9084824915887E+15
Altitude 57494248.7627

Triangular Pyramid

Length = n
Surface area 1.9084824915887E+15
Volume 3.448379605145E+22
Height 31295905.025168