81618054 (number)

81618054 is an even 8-digits composite number following 81618053 and preceding 81618055. In scientific notation, it is written as 8.1618054 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 21947520 positive integers (up to 81618054) that are relatively prime to 81618054.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred eighteen thousand fifty-four

Notation

Scientific notation 8.1618054 × 10^7
Engineering notation 8.1618054 × 10^6

Prime Factorization of 81618054

Prime Factorization 2 × 3 × 119 × 114311

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81618054
Product of the distinct prime numbers

The prime factorization of 81618054 is 2 × 3 × 119 × 114311. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 79, 62, 102, 598, 2600, 5811, 9920, 7045, 316785, 505432, 3614590, 1406947, 37313751, 62044647, 691789631, 901210652, 7853838984, 553390695

Basic calculations (n = 81618054)

Multiplication

n×y
n×2 163236108
n×3 244854162
n×4 326472216
n×5 408090270

Division

n÷y
n÷2 40809027
n÷3 27206018
n÷3 20404513.5
n÷5 16323610.8

Exponentiation

ny
n2 6661506738746916
n3 5.4369921672441E+23
n4 4.4375672030371E+31
n5 3.6218559960611E+39

Nth Root

y√n
2√n 9034.2710829375
3√n 433.77256305874
4√n 95.048782648372
5√n 38.225858439064

Divisors of 81618054

1, 2, 3, 6, 119, 238, 357, 714, 114311, 228622, 342933, 685866, 13603009, 27206018, 40809027, 81618054

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 -81618053
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 81618054 can be divided by 16 positive divisors. The sum of these divisors (counting 81618054) is 1, the average is 0.0625.

Base conversion 81618054

Base System Value
2 Binary 100110111010110010010000110
3 Ternary 12200120121220220
4 Quaternary 10313112102012
5 Quinary 131343234204
6 Senary 12033205210
8 Octal 467262206
10 Decimal 81618054
12 Duodecimal 23400806
16 Hexadecimal 4dd6486
20 Vigesimal 15a252e
36 Base36 1clcw6

Cryptographic Hash Functions

md5 66e757fa66530834be34104417bc9011
sha1 40083fae723f867529b7d58f73d67e2ca2c8b766
sha256 19fa9ce00ce2d62f7e3f226acec0fdc937d0d2da432ac8aaa75afbd05dee759a
sha512 24ff491cb1d39d5397356595bccb20ae6369337c19060490015374259d4caf8ef9e3926b8a80abfe5170eca11653926462328a89a86167c07d9ad2d5a9a9955f
ripemd-160 6e703e4408973f0f2a5e046c7fcdcdedb7271cad

81618054 as geometric shapes

Circle

Radius = n
Diameter 163236108
Circumference 512821357.69339
Area 2.0927740632286E+16

Sphere

Radius = n
Volume 2.2774419533652E+24
Surface area 8.3710962529145E+16
Circumference 512821357.69339

Square

Length = n
Perimeter 326472216
Area 6661506738746916
Diagonal 115425358.9013

Cube

Length = n
Surface area 39969040432481496
Volume 5.4369921672441E+23
Space diagonal 141366616.3429

Equilateral Triangle

Length = n
Perimeter 244854162
Area 2.884517031618E+15
Altitude 70683308.17145

Triangular Pyramid

Length = n
Surface area 2.884517031618E+15
Volume 6.4075567178607E+22
Height 38475119.633767