Properties of the Number 544

Five Hundred Forty-Four

Basics

Value: 543 → 544 → 545

Parity: even

Prime: No

Previous Prime: 541

Next Prime: 547

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ⁵ × 17

Divisors: 1, 2, 4, 8, 16, 17, 32, 34, 68, 136

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1000100000

Octal: 1040

Duodecimal: 394

Hexadecimal: 220

Square: 295936

Square Root: 23.323807579381203

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

Coordination sequence T1 for Zeolite Code ABW and ATN. A8000

4 times triangular numbers: a(n) = 2·n*(n+1). A46092

Number of alternating permutations of order n. A1250

a(n) = n*φ(n). A2618

Triangle read by rows: T(n,m) (n >= m >= 1) = number of regions (or cells) formed by drawing the line segments connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares. A331452

a(n) = floor(n²/2). A7590

Number of symmetric relations on n nodes. A666

Sums of two distinct powers of 2. A18900

Increasing sequence generated by these rules: a(1)=1, and if·is in a then 3x-2 and 4x-2 are in a. A191113

Triangle formed from odd-numbered columns of triangle of expansions of powers of·in terms of Chebyshev polynomials U_n(x). Sometimes called Catalan's triangle. A39598