Properties of the Number 28677

Twenty-Eight Thousand Six Hundred Seventy-Seven

Basics

Value: 28676 → 28677 → 28678

Parity: odd

Prime: No

Previous Prime: 28669

Next Prime: 28687

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 11 ² × 79

Divisors: 1, 3, 11, 33, 79, 121, 237, 363, 869, 2607

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111000000000101

Octal: 70005

Duodecimal: 14719

Hexadecimal: 7005

Square: 822370329

Square Root: 169.34284750174717

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(n) = ∑_{i+j+k=n, i,j,k >= 1} τ(i)*τ(j)*τ(k), where τ() = A000005(). A191829

Numbers k such that there are exactly four biquadratefree powerful numbers (A338325) between k² and (k+1)². A338391

a(n) = 3*(3·n+1)*(9·n+8)/2. A304504

Numbers k such that φ(φ(k)) = σ(rad(k)). A173748

a(1)=a(2)=1, a(n)=a(n-1)+a(n-2) if n is not congruent to 3, a(n)=a(n-1)+a(n/3) if n is congruent to 3. A78913

Number of permutations of [n] avoiding {1324, 2341, 2413}. A294805

Pseudo Galois numbers for d=15. A28677

Number of equivalence classes of 3-valued Post functions of n variables under action of symmetric group S_n. A1321

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically. A207697

Number of 4Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically. A207859