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Properties of the Number 28492

Twenty-Eight Thousand Four Hundred Ninety-Two

Basics

Value: 28491 → 28492 → 28493

Parity: even

Prime: No

Previous Prime: 28477

Next Prime: 28493

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 2 × 17 × 419

Divisors: 1, 2, 4, 17, 34, 68, 419, 838, 1676, 7123

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111101001100

Octal: 67514

Duodecimal: 145A4

Hexadecimal: 6f4c

Square: 811794064

Square Root: 168.79573454326385

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

9-step Fibonacci sequence starting with 0,0,1,0,0,0,0,0,0. A251751
Numbers k such that (prime(j)-1)2 + 1 is prime for k <= j <= k + 2. A376522
Number of -n..n arrays x(0..3) of 4 elements with zero sum and no two consecutive zero elements. A199531
Number of (n+1) X (2+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A234876
Number of n-digit undulating alternating primes. A343676
a(n) is the number of dissections of a (4·n+2)-gon into hexagons using strictly disjoint diagonals. A387202
Euler transform of Thue-Morse sequence A001285. A29877
T(n,k) is the number of (n+1) X (k+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A234882
Triangle T(n, k) = k! - n! + (n-k)! read by rows. A155170
Continued fraction of a constant t with partial denominators {a(n), n>=0} such that the continued fraction of 4·t yields partial denominators {7·a(n), n>=0}. A320412