Properties of the Number 28673

Twenty-Eight Thousand Six Hundred Seventy-Three

Basics

Value: 28672 → 28673 → 28674

Parity: odd

Prime: No

Previous Prime: 28669

Next Prime: 28687

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 53 × 541

Divisors: 1, 53, 541, 28673

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111000000000001

Octal: 70001

Duodecimal: 14715

Hexadecimal: 7001

Square: 822140929

Square Root: 169.33103672983285

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

Numerator of ∑_k=1..n (-1)^k+1/k!. A103816

a(0) = 8; for n>0, a(n) = 2·a(n-1) - 1. A83686

Triangle read by rows in which row n lists n+1 terms, starting with n, such that the difference between successive terms is equal to n⁴ - 1. A162622

Numbers k such that (2·k)!/(2*(k!)²) - 1 is prime. A112861

Triangle read by rows in which row n lists n terms, starting with n⁴ + n - 1, such that the difference between successive terms is equal to n⁴ - 1 = A123865(n). A162624

Equivalent of the Kurepa hypothesis for left factorial. A52169

A132749 * [1, 2, 3, ...] = A007318·A065190. A132750

Triangle read by rows in which row n lists n terms, starting with n, such that the difference between successive terms is equal to n⁴ - 1 = A123865(n). A162623

a(n) = 28·n² + 1. A158556

a(n) = 7·4ⁿ+1. A199207