Properties of the Number 28554

Twenty-Eight Thousand Five Hundred Fifty-Four

Basics

Value: 28553 → 28554 → 28555

Parity: even

Prime: No

Previous Prime: 28549

Next Prime: 28559

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 4759

Divisors: 1, 2, 3, 6, 4759, 9518, 14277, 28554

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110111110001010

Octal: 67612

Duodecimal: 14636

Hexadecimal: 6f8a

Square: 815330916

Square Root: 168.9792886717186

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

T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with zero sum and elements alternately strictly increasing and strictly decreasing. A200057

Number of ways 1/n can be expressed as the sum of four distinct unit fractions: 1/n = 1/w + 1/x + 1/y + 1/z satisfying 0 < w < x < y < z. A241883

Row sums of A329059. A328978

Number of -6..6 arrays x(0..n-1) of n elements with zero sum and elements alternately strictly increasing and strictly decreasing. A200055

Number of -n..n arrays x(0..5) of 6 elements with zero sum and elements alternately strictly increasing and strictly decreasing. A200060

Indices k such that A358128(k) is a square. A358130

Palindromes of form n(n+3). A28554

Number of (n+2) X (4+2) 0..1 arrays with no 3·3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum. A258890

A triangle sequence made symmetrical by reverse coefficients: t0(n,m)=(2 + n! - m! - (n - m)! + 2 + PartitionsP[n] - PartitionsP[ m] - PartitionsP[n - m]); t(n,m)=(t0(n,m)+Reverse[t0(n,m)])/2. A156046