Properties of the Number 28493

Twenty-Eight Thousand Four Hundred Ninety-Three

Basics

Value: 28492 → 28493 → 28494

Parity: odd

Prime: Yes

Previous Prime: 28477

Next Prime: 28499

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 28493

Divisors: 1, 28493

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111101001101

Octal: 67515

Duodecimal: 145A5

Hexadecimal: 6f4d

Square: 811851049

Square Root: 168.7986966774329

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

Expansion of ∏_k>=1 (1 - k·x^k)^k. A266964

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 21. A51962

Primes which are the sum of three distinct positive cubes in two or more distinct ways. A180088

Integer k associated with the conjectured record-breaking maximal element A226667(n) of primitive Collatz-like 3x+k cycles. A226668

Least k such that the longest palindromic substring (without leading zeros) contained in 2^k has length n. A52059

Numbers k such that the continued fraction for sqrt(k) has period 77. A20416

Beginning with 13, least prime such that concatenation of first n terms and its digit reversal both are primes. A382898

a(n) is the numerator of the n-th convergent of [L₁, L₂, L₃, ...] where L_i is the period of the continued fraction for sqrt(i). A53190

a(n) is the total number of all winning moves for all partitions of n which represent Chomp positions. A284686

a(0) = 16, a(n+1) = 3a(n) - (6-n)². A28493