Properties of the Number 28631

Twenty-Eight Thousand Six Hundred Thirty-One

Basics

Value: 28630 → 28631 → 28632

Parity: odd

Prime: Yes

Previous Prime: 28627

Next Prime: 28643

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 28631

Divisors: 1, 28631

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111111010111

Octal: 67727

Duodecimal: 1469B

Hexadecimal: 6fd7

Square: 819734161

Square Root: 169.2069738515526

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 partitions of n in which the least part is even. A26805

Somos's sequence {a(6,n)} defined in comment in A018896: a(0)=a(1)= ... = a(13) = 1; for n>=14, a(n) = (a(n-1)*a(n-13) + a(n-7)²)/a(n-14). A271831

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 569", based on the 5-celled von Neumann neighborhood. A283067

Numbers k such that (18·10^k-1 - 81)/9 is a plateau prime. A82703

Primes p such that their cubes are pandigital. A124629

G.f.: x*(1+x+x²)*(1+6·x+8·x²+4·x³-x⁴)/((1+x)²*(1-x)⁴). A147691

a(n) is the least prime p such that p+prime(n) has exactly n prime factors, counted with multiplicity. A332860

Lexicographically earliest infinite sequence of distinct primes such that, for n > 0, 2n | (a(n+1) - a(n)) and, for n > 0, b(n+1) > b(n) where b(n) = (a(n+1) - a(n)) / 2n. A350392

Expansion of (theta₃(z)*theta₃(16z)+theta₂(z)*theta₂(16z))³. A28631