Properties of the Number 439

Four Hundred Thirty-Nine

Basics

Value: 438 → 439 → 440

Parity: odd

Prime: Yes

Previous Prime: 433

Next Prime: 443

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 439

Divisors: 1, 439

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111

Octal: 667

Duodecimal: 307

Hexadecimal: 1b7

Square: 192721

Square Root: 20.952326839756964

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

Primes of the form 4·k + 3. A2145

Primes of the form 6m + 1. A2476

Number of rooted trees with n vertices in which vertices at the same level have the same degree. A3238

Primes p such that p + 4 is also prime. A23200

Ramanujan primes R_n: a(n) is the smallest number such that if x >= a(n), then π(x) - π(x/2) >= n, where π(x) is the number of primes <= x. A104272

Primes p such that 2p-1 is also prime. A5382

Single (or isolated or non-twin) primes: Primes p such that neither p-2 nor p+2 is prime. A7510

Generalized cuban primes: primes of the form x² + xy + y²; or primes of the form x² + 3·y²; or primes == 0 or 1 (mod 3). A7645

Primes of the form 8n+7, that is, primes congruent to -1 mod 8. A7522

Primes congruent to {0, 1, 4} mod 5. A38872