Properties of the Number 99728

Ninety-Nine Thousand Seven Hundred Twenty-Eight

Basics

Value: 99727 → 99728 → 99729

Parity: even

Prime: No

Previous Prime: 99721

Next Prime: 99733

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 23 × 271

Divisors: 1, 2, 4, 8, 16, 23, 46, 92, 184, 271

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010110010000

Octal: 302620

Duodecimal: 49868

Hexadecimal: 18590

Square: 9945673984

Square Root: 315.7974034092111

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

a(0) = 1; a(n) = ∑_{k=0..floor((n-1)/4)} binomial(n-1,4·k) * a(4·k) * a(n-1-4·k). A386203

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 0, 1), (0, 1, -1), (1, -1, 0), (1, 0, 0)}. A148571

Least number B such that (A001359(n) - B²)² - B is also the lesser of larger twin primes, or 0 if no such B exists. A99728