81666900 (number)

81666900 is an even 8-digits composite number following 81666899 and preceding 81666901. In scientific notation, it is written as 8.1666900 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 48 positive divisors. There are 17902080 positive integers (up to 81666900) that are relatively prime to 81666900.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1666900 × 10^7
Engineering notation 8.1666900 × 10^6

Prime Factorization of 81666900

Prime Factorization 2 × 2 × 675 × 7 × 29 × 149

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40833450
Product of the distinct prime numbers

The prime factorization of 81666900 is 2 × 2 × 675 × 7 × 29 × 149. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 3, 94, 43, 532, 248, 5751, 5186, 15526, 81736, 309475, 408907, 5412489, 4587423, 25291677, 77839415, 839934420, 303283300, 6969029214, 8240108245

Basic calculations (n = 81666900)

Multiplication

n×y
n×2 163333800
n×3 245000700
n×4 326667600
n×5 408334500

Division

n÷y
n÷2 40833450
n÷3 27222300
n÷3 20416725
n÷5 16333380

Exponentiation

ny
n2 6669482555610000
n3 5.4467596492075E+23
n4 4.4481997559586E+31
n5 3.632706846499E+39

Nth Root

y√n
2√n 9036.9740510859
3√n 433.8590791671
4√n 95.063000431745
5√n 38.230432754107

Divisors of 81666900

1, 2, 4, 7, 14, 28, 29, 58, 116, 149, 203, 298, 406, 596, 675, 812, 1043, 1350, 2086, 2700, 4172, 4321, 4725, 8642, 9450, 17284, 18900, 19575, 30247, 39150, 60494, 78300, 100575, 120988, 137025, 201150, 274050, 402300, 548100, 704025, 1408050, 2816100, 2916675, 5833350, 11666700, 20416725, 40833450, 81666900

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81666899
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81666900 can be divided by 48 positive divisors. The sum of these divisors (counting 81666900) is 1, the average is 0.020833333333333.

Base conversion 81666900

Base System Value
2 Binary 100110111100010001101010100
3 Ternary 12200200002221000
4 Quaternary 10313202031110
5 Quinary 131401320100
6 Senary 12034223300
8 Octal 467421524
10 Decimal 81666900
12 Duodecimal 23424b30
16 Hexadecimal 4de2354
20 Vigesimal 15a8750
36 Base36 1cmel0

Cryptographic Hash Functions

md5 12c1a9e1b59511e1bbe6d043830590d3
sha1 5aee8ec96e78029e91d06e89d84a748171a9d32b
sha256 929eada07a1fb68d52f9549ffd439a1924ba9a0430b548cb04ae2a6aa2be3241
sha512 857cbc857ba747a07969c627b45aae9d69219a1b02d85016cae1cebb771f4c8c56e3957e2cbaa4ad08895447e98f7fc090cb64274efead3783f226ceab40d8d6
ripemd-160 e043b907815d232339d0efa988ffe18b3d80b111

81666900 as geometric shapes

Circle

Radius = n
Diameter 163333800
Circumference 513128266.1629
Area 2.095279739995E+16

Sphere

Radius = n
Volume 2.2815333466426E+24
Surface area 8.3811189599799E+16
Circumference 513128266.1629

Square

Length = n
Perimeter 326667600
Area 6669482555610000
Diagonal 115494437.57697

Cube

Length = n
Surface area 40016895333660000
Volume 5.4467596492075E+23
Space diagonal 141451220.09665

Equilateral Triangle

Length = n
Perimeter 245000700
Area 2.8879706616277E+15
Altitude 70725610.048323

Triangular Pyramid

Length = n
Surface area 2.8879706616277E+15
Volume 6.4190678057464E+22
Height 38498145.858989