66393721 (number)

66393721 is an odd 8-digits composite number following 66393720 and preceding 66393722. In scientific notation, it is written as 6.6393721 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 62488192 positive integers (up to 66393721) that are relatively prime to 66393721.

Interesting facts

Basic properties

Name

Name sixty-six million three hundred ninety-three thousand seven hundred twenty-one

Notation

Scientific notation 6.6393721 × 10^7
Engineering notation 6.6393721 × 10^6

Prime Factorization of 66393721

Prime Factorization 17 × 3905513

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 66393721
Product of the distinct prime numbers

The prime factorization of 66393721 is 17 × 3905513. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 66393721)

Multiplication

n×y
n×2 132787442
n×3 199181163
n×4 265574884
n×5 331968605

Division

n÷y
n÷2 33196860.5
n÷3 22131240.333333
n÷3 16598430.25
n÷5 13278744.2

Exponentiation

ny
n2 4408126188225841
n3 2.9267190027386E+23
n4 1.9431576491322E+31
n5 1.290134668155E+39

Nth Root

y√n
2√n 8148.2342258921
3√n 404.9260058896
4√n 90.267570178288
5√n 36.679668486051

Divisors of 66393721

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 -66393720
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 66393721 can be divided by 4 positive divisors. The sum of these divisors (counting 66393721) is 1, the average is 0.25.

Base conversion 66393721

Base System Value
2 Binary 11111101010001011001111001
3 Ternary 11121221011001201
4 Quaternary 3331101121321
5 Quinary 113444044341
6 Senary 10331014201
8 Octal 375213171
10 Decimal 66393721
12 Duodecimal 1a29a361
16 Hexadecimal 3f51679
20 Vigesimal 10ej461
36 Base36 13j1q1

Cryptographic Hash Functions

md5 61e1ffe7d1386299818fb7d37af5c530
sha1 ac3da10d7fab73cf7bf7c859e17b5eb998587734
sha256 e9e30c44b9cac8950c9e8e4d2a7a104c024d25418034480f9c37d620a2e0fe06
sha512 0b273482749bf223e70a7fc44d401651649354b4d84b78e2b854bc3c56c97bcdbbc50593f484a3ca84cdb506b6b62e1dd5ef2c60c0f40d8e3ba889df210b8686
ripemd-160 1f624bb4a5fc9986fa9dcff7b64f92f352d2283c

66393721 as geometric shapes

Circle

Radius = n
Diameter 132787442
Circumference 417164052.27618
Area 1.3848536849027E+16

Sphere

Radius = n
Volume 1.2259411890834E+24
Surface area 5.5394147396108E+16
Circumference 417164052.27618

Square

Length = n
Perimeter 265574884
Area 4408126188225841
Diagonal 93894900.694615

Cube

Length = n
Surface area 26448757129355046
Volume 2.9267190027386E+23
Space diagonal 114997298.07555

Equilateral Triangle

Length = n
Perimeter 199181163
Area 1.9087746310455E+15
Altitude 57498649.037776

Triangular Pyramid

Length = n
Surface area 1.9087746310455E+15
Volume 3.44917142244E+22
Height 31298300.231538