Properties of the Number 81135

Eighty-One Thousand One Hundred Thirty-Five

Basics

Value: 81134 → 81135 → 81136

Parity: odd

Prime: No

Previous Prime: 81131

Next Prime: 81157

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 601

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 601, 1803

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110011101111

Octal: 236357

Duodecimal: 3AB53

Hexadecimal: 13cef

Square: 6582888225

Square Root: 284.84206150075516

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Multiples of 9 in which there is no common digit in successive terms. A83497

Number of length-5 0..n arrays with no following elements greater than or equal to the first repeated value. A267234

a(n) = Sum{a(k): k=0,1,2,...,n-3,n-1}; a(n-2) is not a summand; 2 initial terms required. A49855

5th binomial transform of (0,0,1,0,0,0, ...). A81135

T(n,k)=Number of length-n 0..k arrays with no following elements greater than or equal to the first repeated value. A267232