Properties of the Number 541

Five Hundred Forty-One

Basics

Value: 540 → 541 → 542

Parity: odd

Prime: Yes

Previous Prime: 523

Next Prime: 547

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 541

Divisors: 1, 541

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000011101

Octal: 1035

Duodecimal: 391

Hexadecimal: 21d

Square: 292681

Square Root: 23.259406699226016

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

Fubini numbers: number of preferential arrangements of n labeled elements; or number of weak orders on n labeled elements; or number of ordered partitions of [n]. A670

Primes of the form x² + xy + 2y², with·and y nonnegative. A106856

Pythagorean primes: primes of the form 4·k + 1. A2144

Primes of the form 6m + 1. A2476

Primes with primitive root 2. A1122

Primes congruent to 1 or 2 modulo 4; or, primes of form x² + y²; or, -1 is a square mod p. A2313

Numbers k such that 4^k - 3^k is prime. A59801

Primes p such that p + 6 is also prime. (Lesser of a pair of sexy primes.) A23201

Antisigma(n): Sum of the numbers less than n that do not divide n. A24816

Primes congruent to 1 (mod 12). A68228