Properties of the Number 91866

Ninety-One Thousand Eight Hundred Sixty-Six

Basics

Value: 91865 → 91866 → 91867

Parity: even

Prime: No

Previous Prime: 91841

Next Prime: 91867

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 61 × 251

Divisors: 1, 2, 3, 6, 61, 122, 183, 251, 366, 502

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110011011011010

Octal: 263332

Duodecimal: 451B6

Hexadecimal: 166da

Square: 8439361956

Square Root: 303.09404481117735

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

Related to graded partially ordered sets. A1829

Number of unordered pairs of distinct length-n binary words having the same number of 1's. A108958

Total number of ways of partitioning n and any natural number less than or equal to n into the same number of parts, not treating partitions of n and itself in a different order as distinct. A380126

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having pyramid weight k. A91866

Array read by antidiagonals: T(n,k) = n! * ∑_s 2^{∑_i=1..k-1 s(i}*s(i+1))/(∏_i=1..k s(i)!) where the sum is over all nonnegative compositions s of n into k parts. A361950