Properties of the Number 28458

Twenty-Eight Thousand Four Hundred Fifty-Eight

Basics

Value: 28457 → 28458 → 28459

Parity: even

Prime: No

Previous Prime: 28447

Next Prime: 28463

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 17 × 31

Divisors: 1, 2, 3, 6, 9, 17, 18, 27, 31, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111100101010

Octal: 67452

Duodecimal: 14576

Hexadecimal: 6f2a

Square: 809857764

Square Root: 168.6949910341146

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

Partial sums of A001157: ∑_j=1..n sigma₂(j). A64602

Numbers n such that σ(n) = 8*φ(n). A104901

Structured triakis tetrahedral numbers (vertex structure 4). A100175

Row sums of A095167. A95170

The Wiener index of the comb-shaped graph |_|_|...|_| with 2n (n>=1) nodes. The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices in the graph. A192023

a(n) is the largest number t such that there exist numbers i,j,k such that, for all m <= t, there exist integers x,y,z with x·i + y·j + z·k = m and |x|+|y|+|z| <= n. A383579

Number of length 3 0..n arrays with each partial sum starting from the beginning no more than sqrt(3) standard deviations from its mean. A244942

Number of perfect matchings in graph P₂ X C₆ X P_n. A28458