Properties of the Number 548

Five Hundred Forty-Eight

Basics

Value: 547 → 548 → 549

Parity: even

Prime: No

Previous Prime: 547

Next Prime: 557

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 137

Divisors: 1, 2, 4, 137, 274, 548

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000100100

Octal: 1044

Duodecimal: 398

Hexadecimal: 224

Square: 300304

Square Root: 23.40939982143925

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

Number of rooted identity trees with n nodes (rooted trees whose automorphism group is the identity group). A4111

Numbers m such that ∑_k=1..m (<1/2 + k·r> - <k·r>) = 0, where r=sqrt(2) and < > denotes fractional part. A194368

Number of subset-sums of integer partitions of n. A304792

Numbers whose ternary expansion contains no 1's. A5823

Number of integer partitions of n such that it is possible to choose a different prime factor of each part. A370592

Numbers k such that the sum of the first k primes is prime. A13916

Numbers that are the sum of 8 positive 4th powers. A3342

Numbers k such that k¹²⁸ + 1 is prime. A56994

Numbers m such that the Bernoulli number B_m has denominator 30. A51226

Triangle read by rows: T(n, k) = (k+1)*A132393(n+1, k+1), for 0 <= k <= n. A28421