Properties of the Number 69889

Sixty-Nine Thousand Eight Hundred Eighty-Nine

Basics

Value: 69888 → 69889 → 69890

Parity: odd

Prime: No

Previous Prime: 69877

Next Prime: 69899

Digit Sum: 40

Digital Root: 4

Palindrome: No

Factorization: 47 × 1487

Divisors: 1, 47, 1487, 69889

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000100000001

Octal: 210401

Duodecimal: 34541

Hexadecimal: 11101

Square: 4884472321

Square Root: 264.36527759900696

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

a(1) = 1, a(2n) = 16a(n), a(2n+1) = a(2n)+1. A33052

a(n) = ∑_{k=0..floor(n/3)} 2^n-3·k * binomial(2·k,2·n-6·k). A387648

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 278", based on the 5-celled von Neumann neighborhood. A280526

Constant term of the reduction by x²->x+1 of the polynomial p(n,x) defined at Comments. A193046

Length of the trajectory of the composition run-sum transformation (condensation) of the n-th composition in standard order. A353854

Self-inverse permutation of natural numbers induced by the automorphism RotateHandshakes_et_DeepReverse! acting on the parenthesizations encoded by A014486. A69889