Properties of the Number 542

Five Hundred Forty-Two

Basics

Value: 541 → 542 → 543

Parity: even

Prime: No

Previous Prime: 541

Next Prime: 547

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 271

Divisors: 1, 2, 271, 542

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000011110

Octal: 1036

Duodecimal: 392

Hexadecimal: 21e

Square: 293764

Square Root: 23.280893453645632

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

Sum of totient function: a(n) = ∑_k=1..n φ(k), cf. A000010. A2088

Digitally balanced numbers: positive numbers that in base 2 have the same number of 0's as 1's. A31443

Number of partitions of n into pairwise relatively prime parts. A51424

Increasing sequence generated by these rules: a(1)=1, and if·is in a then 3x-2 and 4x-2 are in a. A191113

Number of strict integer partitions of n containing the sum of some subset of the parts. A variation of sum-full strict partitions. A364272

Numbers whose ternary expansion contains no 1's. A5823

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 4.6.12 2D tiling (cf. A072154). A299258

Numbers k such that k⁸ + 1 is prime. A6314

Numbers k such that Bernoulli number B_k has denominator 6. A51222

Number of compositions (ordered partitions) of n into powers of 2. A23359