81678081 (number)

81678081 is an odd 8-digits composite number following 81678080 and preceding 81678082. In scientific notation, it is written as 8.1678081 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 51168000 positive integers (up to 81678081) that are relatively prime to 81678081.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1678081 × 10^7
Engineering notation 8.1678081 × 10^6

Prime Factorization of 81678081

Prime Factorization 3 × 17 × 1301 × 1231

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81678081
Product of the distinct prime numbers

The prime factorization of 81678081 is 3 × 17 × 1301 × 1231. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 5, 22, 68, 753, 160, 4402, 6540, 83245, 12987, 188600, 866245, 9728800, 8419671, 75176147, 67968754, 120070494, 176884070, 8556034430, 5581497038

Basic calculations (n = 81678081)

Multiplication

n×y
n×2 163356162
n×3 245034243
n×4 326712324
n×5 408390405

Division

n÷y
n÷2 40839040.5
n÷3 27226027
n÷3 20419520.25
n÷5 16335616.2

Exponentiation

ny
n2 6671308915842561
n3 5.4489971000421E+23
n4 4.45063626506E+31
n5 3.6351942935911E+39

Nth Root

y√n
2√n 9037.5926551267
3√n 433.87887811869
4√n 95.066254029107
5√n 38.231479521062

Divisors of 81678081

1, 3, 17, 51, 1231, 1301, 3693, 3903, 20927, 22117, 62781, 66351, 1601531, 4804593, 27226027, 81678081

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81678080
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81678081 can be divided by 16 positive divisors. The sum of these divisors (counting 81678081) is 1, the average is 0.0625.

Base conversion 81678081

Base System Value
2 Binary 100110111100100111100000001
3 Ternary 12200200200021010
4 Quaternary 10313210330001
5 Quinary 131402144311
6 Senary 12034351133
8 Octal 467447401
10 Decimal 81678081
12 Duodecimal 2342b4a9
16 Hexadecimal 4de4f01
20 Vigesimal 15a9f41
36 Base36 1cmn7l

Cryptographic Hash Functions

md5 a5931dc15ebe6dca03acb0d0c425260d
sha1 6e91c69ed8f0b7e48c765c64f731c4436f37e580
sha256 329f9c76a4bcb1b6a7be41dbc8fbabfda8174d1a0151b50d522f95514ce64e62
sha512 fc8891cbd4a27889a86250327f5ba1c04c40d15aae6fc6a44089d4648851a4e3aa1d8dd9bbfb0d3ea50a84aa54bc9a2ac1387c13029498587860c73f3297b83d
ripemd-160 924da8ec00b7f7fce704852e4acf1a9e0877f78a

81678081 as geometric shapes

Circle

Radius = n
Diameter 163356162
Circumference 513198518.45782
Area 2.0958535079839E+16

Sphere

Radius = n
Volume 2.2824705678566E+24
Surface area 8.3834140319356E+16
Circumference 513198518.45782

Square

Length = n
Perimeter 326712324
Area 6671308915842561
Diagonal 115510249.89881

Cube

Length = n
Surface area 40027853495055366
Volume 5.4489971000421E+23
Space diagonal 141470586.15673

Equilateral Triangle

Length = n
Perimeter 245034243
Area 2.8887614988066E+15
Altitude 70735293.078363

Triangular Pyramid

Length = n
Surface area 2.8887614988066E+15
Volume 6.4217046668427E+22
Height 38503416.632936