Properties of the Number 18485

Eighteen Thousand Four Hundred Eighty-Five

Basics

Value: 18484 → 18485 → 18486

Parity: odd

Prime: No

Previous Prime: 18481

Next Prime: 18493

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 3697

Divisors: 1, 5, 3697, 18485

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100100000110101

Octal: 44065

Duodecimal: A845

Hexadecimal: 4835

Square: 341695225

Square Root: 135.95955280891445

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 multigraphs with 5 nodes and n edges. A14395

a(n) = sum of the first n lower twin primes. A86167

A(n, k) = (m·k)! [x^k] MittagLefflerE(m, x)ⁿ, for m = 3, n >= 0, k >= 0; square array read by descending antidiagonals. A326474

Triangle read by rows: T(n,k) is number of peakless Motzkin paths of length n and having k uhh...hd's starting at level 0, where u=(1,1), h=(1,0) and d=(1,-1) (can be easily expressed using RNA secondary structure terminology). A98071

Number of peakless Motzkin paths of length n and having no uhh...hd's starting at level 0, where u = (1, 1), h = (1, 0) and d = (1, -1). A190159

Numbers k such that k² + k - 1 and k² + k + 1 are twin primes and (k + 1)*(k + 1) + k + 1 - 1 and (k + 1)*(k + 1) + k + 1 + 1 are also twin primes. A88498

Number of length n+3 0..4 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth. A248533

Number of graph minors in the cycle graph C_n. A353206

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 11. A51976

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, -1, 1), (-1, 0, 1), (1, 0, -1), (1, 1, 1)}. A149617