66808081 (number)

66808081 is an odd 8-digits composite number following 66808080 and preceding 66808082. In scientific notation, it is written as 6.6808081 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 66472164 positive integers (up to 66808081) that are relatively prime to 66808081.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.6808081 × 10^7
Engineering notation 6.6808081 × 10^6

Prime Factorization of 66808081

Prime Factorization 199 × 335719

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 66808081
Product of the distinct prime numbers

The prime factorization of 66808081 is 199 × 335719. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 66808081)

Multiplication

n×y
n×2 133616162
n×3 200424243
n×4 267232324
n×5 334040405

Division

n÷y
n÷2 33404040.5
n÷3 22269360.333333
n÷3 16702020.25
n÷5 13361616.2

Exponentiation

ny
n2 4463319686902561
n3 2.9818582317148E+23
n4 1.9921222627492E+31
n5 1.3308986549165E+39

Nth Root

y√n
2√n 8173.6210457789
3√n 405.76663407032
4√n 90.408080644259
5√n 36.725337827076

Divisors of 66808081

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 -66808080
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 66808081 can be divided by 4 positive divisors. The sum of these divisors (counting 66808081) is 1, the average is 0.25.

Base conversion 66808081

Base System Value
2 Binary 11111110110110100100010001
3 Ternary 11122201012110101
4 Quaternary 3332312210101
5 Quinary 114100324311
6 Senary 10343532401
8 Octal 376664421
10 Decimal 66808081
12 Duodecimal 1a45a101
16 Hexadecimal 3fb6911
20 Vigesimal 10hb041
36 Base36 13rxg1

Cryptographic Hash Functions

md5 efd36094ef889fb0202d6e3beefe4e6f
sha1 7ccb15d9d431dd5a21b816cf0ab9f913cb2fdeb4
sha256 019f67f45ccb97de7d23e47958fa8d6ef7ed092085244aa0123062f81560d1bf
sha512 c45b54ae8d73bb338f69af82f64793857ae4c365fdb5523b5d6bace2258b0e6e7ca0aea262e93649d6ae124c05020f6c66970506c830dba517f2f0c25c9f8a5e
ripemd-160 9d870c40f14cf1672a2dafe81428faac8b5d41f9

66808081 as geometric shapes

Circle

Radius = n
Diameter 133616162
Circumference 419767552.94006
Area 1.4021932338996E+16

Sphere

Radius = n
Volume 1.2490378553069E+24
Surface area 5.6087729355983E+16
Circumference 419767552.94006

Square

Length = n
Perimeter 267232324
Area 4463319686902561
Diagonal 94480894.22632

Cube

Length = n
Surface area 26779918121415366
Volume 2.9818582317148E+23
Space diagonal 115714990.64818

Equilateral Triangle

Length = n
Perimeter 200424243
Area 1.9326741170344E+15
Altitude 57857495.324088

Triangular Pyramid

Length = n
Surface area 1.9326741170344E+15
Volume 3.5141536269708E+22
Height 31493631.408773