Properties of the Number 33227

Thirty-Three Thousand Two Hundred Twenty-Seven

Basics

Value: 33226 → 33227 → 33228

Parity: odd

Prime: No

Previous Prime: 33223

Next Prime: 33247

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 149 × 223

Divisors: 1, 149, 223, 33227

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000000111001011

Octal: 100713

Duodecimal: 1728B

Hexadecimal: 81cb

Square: 1104033529

Square Root: 182.28274740084427

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

Pseudoprimes to base 7. A5938

a(n+6) = -a(n+5) + a(n+4) + 3a(n+3) + a(n+2) - a(n+1) - a(n). a(n) = sign(n) if abs(n)<=3. A1945

Semiprimes of the form n*(3·n-1)/2. A245365

Pentagonal numbers with prime indices. A116995

Pentagonal numbers (A000326) which are the sum of 2 other positive pentagonal numbers. A136117

Semiprimes of the form (4·n + 1)*(6·n + 1) = 24·n² + 10·n + 1. A255584

L.g.f.: ∑_n>=1 x^(2·n-1²) / ( (2·n-1) * (1 - x^2·n)^2·n-1 ). A293598

a(n) is the smallest k such that (Z/kZ)* contains C_2n X C_2n as a subgroup, where (Z/kZ)* is the multiplicative group of integers modulo n. A307436

Number of paraffins. A5999

Strong pseudoprimes to base 17. A20243