Properties of the Number 91787

Ninety-One Thousand Seven Hundred Eighty-Seven

Basics

Value: 91786 → 91787 → 91788

Parity: odd

Prime: No

Previous Prime: 91781

Next Prime: 91801

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 263 × 349

Divisors: 1, 263, 349, 91787

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110011010001011

Octal: 263213

Duodecimal: 4514B

Hexadecimal: 1668b

Square: 8424853369

Square Root: 302.96369419453544

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(n) = prime(1³) + prime(2³) + prime(3³) + ... + prime(n³). A109789

Number of (n+5)X6 0..1 matrices with each 6X6 subblock idempotent. A224570

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 813", based on the 5-celled von Neumann neighborhood. A273640

a(1) = 2. To get a(n+1), write the string a(1)a(2)...a(n) as xy^k for words·and y (where y has positive length) and k is maximized, i.e., k = the maximal number of repeating blocks at the end of the sequence so far. Then a(n+1) = max(k,2). A91787

T(n,k)=Number of (n+5)X(k+5) 0..1 matrices with each 6X6 subblock idempotent. A224577

The records for distance squared for step lengths between adjacent composite numbers in A332767, the visited composite numbers for a walk stepping to the closest unvisited composite number on the 2D square (Ulam) spiral. A330782