81678045 (number)

81678045 is an odd 8-digits composite number following 81678044 and preceding 81678046. In scientific notation, it is written as 8.1678045 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 42638400 positive integers (up to 81678045) that are relatively prime to 81678045.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1678045 × 10^7
Engineering notation 8.1678045 × 10^6

Prime Factorization of 81678045

Prime Factorization 15 × 71 × 283 × 271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81678045
Product of the distinct prime numbers

The prime factorization of 81678045 is 15 × 71 × 283 × 271. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 22, 68, 30, 271, 1807, 8457, 6563, 76228, 187339, 746475, 651724, 9800837, 92284694, 13222332, 399091626, 939451402, 2369125403, 9849367166

Basic calculations (n = 81678045)

Multiplication

n×y
n×2 163356090
n×3 245034135
n×4 326712180
n×5 408390225

Division

n÷y
n÷2 40839022.5
n÷3 27226015
n÷3 20419511.25
n÷5 16335609

Exponentiation

ny
n2 6671303035022025
n3 5.4489898950317E+23
n4 4.4506284185094E+31
n5 3.6351862824529E+39

Nth Root

y√n
2√n 9037.5906634457
3√n 433.87881437396
4√n 95.06624355388
5√n 38.231476150921

Divisors of 81678045

1, 15, 71, 271, 283, 1065, 4065, 4245, 19241, 20093, 76693, 288615, 301395, 1150395, 5445203, 81678045

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 -81678044
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 81678045 can be divided by 16 positive divisors. The sum of these divisors (counting 81678045) is 1, the average is 0.0625.

Base conversion 81678045

Base System Value
2 Binary 100110111100100111011011101
3 Ternary 12200200200012210
4 Quaternary 10313210323131
5 Quinary 131402144140
6 Senary 12034351033
8 Octal 467447335
10 Decimal 81678045
12 Duodecimal 2342b479
16 Hexadecimal 4de4edd
20 Vigesimal 15a9f25
36 Base36 1cmn6l

Cryptographic Hash Functions

md5 718a9a088ff08d63f2a554ee01401d0f
sha1 27c5e3b015b9d6037c37a6b0ed78eb921a809d2c
sha256 0787908e47dce1d7662c7bd94dc707a54037f77472314d6464a7d8ddcf14d66c
sha512 2e52fc8ce3682c2a49779f53aba6fe046fb56e0755ee2464da09f7ebaa9487463c02522242693e81b1bb36268a6436bf870bdb8e95edffeb71ef4b75b024d0ef
ripemd-160 de14c0e727bbea3718dab8a9002b2583c91847d0

81678045 as geometric shapes

Circle

Radius = n
Diameter 163356090
Circumference 513198292.26315
Area 2.0958516604696E+16

Sphere

Radius = n
Volume 2.2824675498289E+24
Surface area 8.3834066418786E+16
Circumference 513198292.26315

Square

Length = n
Perimeter 326712180
Area 6671303035022025
Diagonal 115510198.98712

Cube

Length = n
Surface area 40027818210132150
Volume 5.4489898950317E+23
Space diagonal 141470523.8029

Equilateral Triangle

Length = n
Perimeter 245034135
Area 2.8887589523366E+15
Altitude 70735261.901449

Triangular Pyramid

Length = n
Surface area 2.8887589523366E+15
Volume 6.4216961756564E+22
Height 38503399.662373