Properties of the Number 89505

Eighty-Nine Thousand Five Hundred Five

Basics

Value: 89504 → 89505 → 89506

Parity: odd

Prime: No

Previous Prime: 89501

Next Prime: 89513

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 5 × 13 × 17

Divisors: 1, 3, 5, 9, 13, 15, 17, 27, 39, 45

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101110110100001

Octal: 256641

Duodecimal: 43969

Hexadecimal: 15da1

Square: 8011145025

Square Root: 299.1738624947039

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

Terms of A363691 with a record number of divisors. A363693

Numbers n such that (n+2) | (2ⁿ+3ⁿ). A123049

Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1110-0111 pattern in any orientation. A146473

Norm of coefficients in the expansion of 1 / (1 - 3·x + 2·I*x²), where I²=-1. A218136

Numbers k such that 4^k - 3^k is prime. A59801

Triangle of signed numbers used for the computation of the column sequences of triangle A089504. A89505

a(n) = 6ⁿ-n⁸. A24070

a(n) = coefficient of xⁿ in the (3ⁿ)-th power of 1 + ∑_k>=0 x^{3^k} for n>=0. A168370