Properties of the Number 55804

Fifty-Five Thousand Eight Hundred Four

Basics

Value: 55803 → 55804 → 55805

Parity: even

Prime: No

Previous Prime: 55799

Next Prime: 55807

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 7 × 1993

Divisors: 1, 2, 4, 7, 14, 28, 1993, 3986, 7972, 13951

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101100111111100

Octal: 154774

Duodecimal: 28364

Hexadecimal: d9fc

Square: 3114086416

Square Root: 236.22870274376058

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

b(n) in (sqrt(2))_n = b(n) + c(n)*sqrt(2), where (x)_n is the Pochhammer symbol, b(n) and c(n) are integers. A263687

Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. cosh( sqrt(k) * log(1-x) ). A357712

Expansion of g.f. A(x) = ∑_n>=0 dⁿ/dxⁿ x^2·n * (1 + x)^4·n / n!. A361304

Numbers n such that φ(σ*(n)) = σ*(φ(n)), where σ*(n) is the sum of anti-divisors of n and φ(n) is the Euler totient function. A243996

a(n) = T(n,n-4), array T as in A055801. A55804