Properties of the Number 16289

Sixteen Thousand Two Hundred Eighty-Nine

Basics

Value: 16288 → 16289 → 16290

Parity: odd

Prime: No

Previous Prime: 16273

Next Prime: 16301

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 7 × 13 × 179

Divisors: 1, 7, 13, 91, 179, 1253, 2327, 16289

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111110100001

Octal: 37641

Duodecimal: 9515

Hexadecimal: 3fa1

Square: 265331521

Square Root: 127.62836675285006

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

Expansion of ∏_k>=1 (1 + x^k)^φ(k), where φ() is the Euler totient function (A000010). A299069

Number of subsets of {1..n} containing n such that no element can be written as a positive linear combination of the others. A365045

T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..4 nXk array. A218288

a(n) = (2·n+1) * (4·n-1). A33566

Coefficients in the expansion of C/B², in Watson's notation of page 118. A160525

Numbers that are the sum of four positive cubes in exactly five ways. A343986

a(n) = smallest multiple of prime(n) such that a(n) +1 is a multiple of prime(n+1). A77338

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 225", based on the 5-celled von Neumann neighborhood. A286962

Ulam's spiral (NNE spoke). A143861

a(n) = 29 + 73·n + 37·n². A145980