Properties of the Number 18077

Eighteen Thousand Seventy-Seven

Basics

Value: 18076 → 18077 → 18078

Parity: odd

Prime: Yes

Previous Prime: 18061

Next Prime: 18089

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 18077

Divisors: 1, 18077

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011010011101

Octal: 43235

Duodecimal: A565

Hexadecimal: 469d

Square: 326777929

Square Root: 134.45073447177595

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 43·n² - 537·n + 2971 in order of increasing nonnegative values of n. A272285

Least prime in A031930 (lesser of 12-twins) whose distance to the next 12-twin is 2·n. A52355

Numbers k such that 10^2·k+1-8·10^k-1 is prime. A183184

Primes p such that ∑_{k=PreviousPrime(p)..p} d(k) = ∑_{k=p..NextPrime(p)} d(k), where d(k) is the number of divisors function A000005. A353552

Primes p of the form 8·k + 5 such that every odd prime divisor of p-1 has the form 8·t + 7. A306932

Number of cells in column 1 of all deco polyominoes of height n. A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column. A121580

Primes congruent to 23 mod 59. A142750

Primes p for which p² + p - 1 = q·r (q<r) such that q, r, p² + q - 1 and p² + r - 1 are primes. A227276

a(n) = -2·a(n-1) -2·a(n-2) + a(n-3). a(0) = -1, a(1) = 1, a(2) = 1. A233831

Primes of the form 2·n²+38·n+17. A243890