Properties of the Number 91081

Ninety-One Thousand Eighty-One

Basics

Value: 91080 → 91081 → 91082

Parity: odd

Prime: Yes

Previous Prime: 91079

Next Prime: 91097

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 91081

Divisors: 1, 91081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001111001001

Octal: 261711

Duodecimal: 44861

Hexadecimal: 163c9

Square: 8295748561

Square Root: 301.7962889102515

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

Class 7+ primes. A81635

Fixed points of A245821 and A245822. A245823

Secondary diagonal of square table A112564 of generalized Flavius Josephus sieves. A112568

Primes of the form k³ - k + 1. A100698

Prime numbers p such that π(p) + 2·p is a square. A104783

Numbers k such that -3 is a quadratic residue (not necessarily coprime) modulo k, k + 1, k + 2 and k + 3. A318527

Group the natural numbers so that the product of the terms in each group + 1 is a prime: (1), (2), (3, 4), (5, 6), (7, 8, 9, 10, 11), (12), (13, 14, 15), (16), ... This is the sequence of such primes. A73688

Primes of the form x² + 18480·y². A173274

Primes of the form (k - 1) * k * (k + 1) +- 1, k >= 1. A293861

Square array, read by ascending antidiagonals, where each row is a generalized Flavius Josephus sieve (A000960). A112564