Properties of the Number 28144

Twenty-Eight Thousand One Hundred Forty-Four

Basics

Value: 28143 → 28144 → 28145

Parity: even

Prime: No

Previous Prime: 28123

Next Prime: 28151

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 1759

Divisors: 1, 2, 4, 8, 16, 1759, 3518, 7036, 14072, 28144

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111110000

Octal: 66760

Duodecimal: 14354

Hexadecimal: 6df0

Square: 792084736

Square Root: 167.76173580408616

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

a(n) = a(n-1) + floor(a(n-2)/3) with a(0)=2, a(1)=3. A182229

Triangle of numbers obtained by inverting infinite matrix defined in A059369, read from right to left. A59370

Revert transform of factorials n! (n >= 1). A59372

First term is 1; thereafter, if u and v are consecutive terms, with decimal expansions u = bc...ef, v = hi...jk, then v-u has decimal expansion efhi, formed by concatenating the last two digits of u and the first two digits of v. If there is a choice for v, pick the smallest. A367363

Numbers whose binary expansion consists of alternating runs of 1's and 0's where each run of 0's is exactly one shorter than the preceding run of 1's, and the expansion ends with a 0-run. A387270

Positive numbers for which the product of digits is equal to the power tower of digits (right-associative). A321990

Expansion of 1/((1-4x)(1-6x)(1-11x)(1-12x)). A28144