Properties of the Number 91223

Ninety-One Thousand Two Hundred Twenty-Three

Basics

Value: 91222 → 91223 → 91224

Parity: odd

Prime: No

Previous Prime: 91199

Next Prime: 91229

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 11 × 8293

Divisors: 1, 11, 8293, 91223

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110010001010111

Octal: 262127

Duodecimal: 4495B

Hexadecimal: 16457

Square: 8321635729

Square Root: 302.0314553155019

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

T(n,k)=Number of nXk 0..3 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor. A201625

Number of nX4 0..3 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor. A201621

Number of n X n 0..3 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor. A201617

Differences between consecutive irreducible GF(2)[X]-polynomials. A91223

New tetradiagonal form matrix as triangular sequence from solution of : X(n,m)=Steinbach(n,m)^-1.tri-Antidiagonal₁(n,n). A124020