66181821 (number)

66181821 is an odd 8-digits composite number following 66181820 and preceding 66181822. In scientific notation, it is written as 6.6181821 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 44121212 positive integers (up to 66181821) that are relatively prime to 66181821.

Interesting facts

Basic properties

Name

Name sixty-six million one hundred eighty-one thousand eight hundred twenty-one

Notation

Scientific notation 6.6181821 × 10^7
Engineering notation 6.6181821 × 10^6

Prime Factorization of 66181821

Prime Factorization 3 × 22060607

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 66181821
Product of the distinct prime numbers

The prime factorization of 66181821 is 3 × 22060607. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 66181821)

Multiplication

n×y
n×2 132363642
n×3 198545463
n×4 264727284
n×5 330909105

Division

n÷y
n÷2 33090910.5
n÷3 22060607
n÷3 16545455.25
n÷5 13236364.2

Exponentiation

ny
n2 4380033430876041
n3 2.8987858849625E+23
n4 1.9184692855592E+31
n5 1.2696779085088E+39

Nth Root

y√n
2√n 8135.2210172804
3√n 404.49476397681
4√n 90.195460070229
5√n 36.656225415954

Divisors of 66181821

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 -66181820
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 66181821 can be divided by 4 positive divisors. The sum of these divisors (counting 66181821) is 1, the average is 0.25.

Base conversion 66181821

Base System Value
2 Binary 11111100011101101010111101
3 Ternary 11121112101101120
4 Quaternary 3330131222331
5 Quinary 113420304241
6 Senary 10322301153
8 Octal 374355275
10 Decimal 66181821
12 Duodecimal 1a1b77b9
16 Hexadecimal 3f1dabd
20 Vigesimal 10dceb1
36 Base36 13ei7x

Cryptographic Hash Functions

md5 f1fbae918249c51769fb9fc4aadf55e9
sha1 74048d9fe06792638f5975f1780fe7013b7b28df
sha256 388719a73d855102b94a05eb7d62ba5c4490886fa5142b9f57c38552bf17d297
sha512 00ccd48f9949d47d3b80a96d6ace86e7e14a42c912837ce76f124d4eef4846ce8e3e2e4f2fda3d5ab5f0c60e8ca368b47aa9388923271bb428f59ae637d4dfb9
ripemd-160 12d73a511705e2adfa28b3047c1ff84991ae6042

66181821 as geometric shapes

Circle

Radius = n
Diameter 132363642
Circumference 415832645.30959
Area 1.3760280848918E+16

Sphere

Radius = n
Volume 1.2142405920704E+24
Surface area 5.5041123395671E+16
Circumference 415832645.30959

Square

Length = n
Perimeter 264727284
Area 4380033430876041
Diagonal 93595228.840749

Cube

Length = n
Surface area 26280200585256246
Volume 2.8987858849625E+23
Space diagonal 114630276.50943

Equilateral Triangle

Length = n
Perimeter 198545463
Area 1.8966101102819E+15
Altitude 57315138.254714

Triangular Pyramid

Length = n
Surface area 1.8966101102819E+15
Volume 3.4162519274414E+22
Height 31198409.613583