81663516 (number)

81663516 is an even 8-digits composite number following 81663515 and preceding 81663517. In scientific notation, it is written as 8.1663516 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 24746400 positive integers (up to 81663516) that are relatively prime to 81663516.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred sixty-three thousand five hundred sixteen

Notation

Scientific notation 8.1663516 × 10^7
Engineering notation 8.1663516 × 10^6

Prime Factorization of 81663516

Prime Factorization 2 × 2 × 9 × 11 × 206221

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40831758
Product of the distinct prime numbers

The prime factorization of 81663516 is 2 × 2 × 9 × 11 × 206221. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 1, 76, 94, 594, 43, 9352, 7935, 51506, 69187, 281512, 286672, 2529225, 2573577, 56477057, 81912445, 694473669, 236267731, 993472287, 7542180055

Basic calculations (n = 81663516)

Multiplication

n×y
n×2 163327032
n×3 244990548
n×4 326654064
n×5 408317580

Division

n÷y
n÷2 40831758
n÷3 27221172
n÷3 20415879
n÷5 16332703.2

Exponentiation

ny
n2 6668929845482256
n3 5.4460825913942E+23
n4 4.4474625283964E+31
n5 3.631954273471E+39

Nth Root

y√n
2√n 9036.7868183332
3√n 433.8530865336
4√n 95.062015644174
5√n 38.230115920901

Divisors of 81663516

1, 2, 4, 9, 11, 18, 22, 36, 44, 99, 198, 396, 206221, 412442, 824884, 1855989, 2268431, 3711978, 4536862, 7423956, 9073724, 20415879, 40831758, 81663516

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81663515
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81663516 can be divided by 24 positive divisors. The sum of these divisors (counting 81663516) is 1, the average is 0.041666666666667.

Base conversion 81663516

Base System Value
2 Binary 100110111100001011000011100
3 Ternary 12200122221021200
4 Quaternary 10313201120130
5 Quinary 131401213031
6 Senary 12034155500
8 Octal 467413034
10 Decimal 81663516
12 Duodecimal 23422b90
16 Hexadecimal 4de161c
20 Vigesimal 15a7ifg
36 Base36 1cmbz0

Cryptographic Hash Functions

md5 1bcd9f75b9e9c614af7fb490e88005fd
sha1 decf7fb83d757b40694c6678804b79c1e0d14283
sha256 acfb64cc72ab0ced8461a28d403beb9f82c15728f4086cbb4cd87c22f7c03d48
sha512 31f5018548dcd18eb7b9d2243fe683f0a05e90bdf7a45c6a92db2b6c84ee929b8555367722da22e9a39102bd56fbe2ee8e9a1bf94862eac84bf283556ab6aa18
ripemd-160 eddea220b27c9a0f13a348b68e202c7c6d526398

81663516 as geometric shapes

Circle

Radius = n
Diameter 163327032
Circumference 513107003.86383
Area 2.0951061009873E+16

Sphere

Radius = n
Volume 2.281249741329E+24
Surface area 8.3804244039491E+16
Circumference 513107003.86383

Square

Length = n
Perimeter 326654064
Area 6668929845482256
Diagonal 115489651.87827

Cube

Length = n
Surface area 40013579072893536
Volume 5.4460825913942E+23
Space diagonal 141445358.83671

Equilateral Triangle

Length = n
Perimeter 244990548
Area 2.8877313311219E+15
Altitude 70722679.418357

Triangular Pyramid

Length = n
Surface area 2.8877313311219E+15
Volume 6.4182698854614E+22
Height 38496550.626091