Properties of the Number 28707

Twenty-Eight Thousand Seven Hundred Seven

Basics

Value: 28706 → 28707 → 28708

Parity: odd

Prime: No

Previous Prime: 28703

Next Prime: 28711

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 1367

Divisors: 1, 3, 7, 21, 1367, 4101, 9569, 28707

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000000100011

Octal: 70043

Duodecimal: 14743

Hexadecimal: 7023

Square: 824091849

Square Root: 169.43140204814455

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

Array read by antidiagonals: T(n,k) is the number of rooted strong triangulations of a disk with n interior nodes and 3+k nodes on the boundary. A341856

Number of subsequences of {1..n} such that all differences of pairs of terms are distinct (i.e., number of Golomb rulers on {1..n}). A54578

Expansion of ∏_k>=1 (1 + x^5·k-4)^5·k-4. A285338

Numbers k such that k⁶ - 2 and k⁶ + 2 are both primes. A154938

Number of length n left factors of Dyck paths having no triple-rises (triple-rise = three consecutive (1,1)-steps). A191786

Expansion of (theta₃(z)*theta₃(4z)*theta₃(16z)+theta₂(z)*theta₂(4z)*theta₂(16z))². A28707