Properties of the Number 33381

Thirty-Three Thousand Three Hundred Eighty-One

Basics

Value: 33380 → 33381 → 33382

Parity: odd

Prime: No

Previous Prime: 33377

Next Prime: 33391

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 3709

Divisors: 1, 3, 9, 3709, 11127, 33381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000001001100101

Octal: 101145

Duodecimal: 17399

Hexadecimal: 8265

Square: 1114291161

Square Root: 182.70467974302136

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

Number of ways of writing n as the sum of 9 triangular numbers. A226253

Sum of fourth powers of Fibonacci numbers. A5969

G.f.: (x+4·x³+x⁵)/((1-x)²*(1-x²)²*(1-x³)²). A83708

Integers that do not appear in A103502. A103504

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 379", based on the 5-celled von Neumann neighborhood. A271537

a(n) = number of n-lettered words in the alphabet {1, 2, 3} with as many occurrences of the substring (consecutive subword) [1, 1, 2] as of [2, 1, 3]. A211293

a(n) = floor(61/n). A33381

Every 9th term of A083949 where the self-convolution 9th power is congruent modulo 27 to A083949, which consists entirely of numbers 1 through 9. A110639