Properties of the Number -243542

Two Hundred Forty-Three Thousand Five Hundred Forty-Two

Basics

Value: -243543 → -243542 → -243541

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 13 × 17 × 19 × 29

Divisors: 1, 2, 13, 17, 19, 26, 29, 34, 38, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -111011011101010110

Octal: -733526

Duodecimal: -B8B32

Hexadecimal: -3b756

Square: 59312705764

Square Root: 493.4997467071285

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 (1+x)/(1-x)¹². A57788

a(n) = a(n-3) + A001654(n-1) with a(0)=0, a(1)=0 and a(2)=1. A115730

Number of positive clusters of type D_n. A129869

Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive step pattern up, down, down, up; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-2)/3)), read by rows. A230695

Sum of root degrees of all symmetric ordered trees with n edges. A143360

Stepped path in P(k,n) array of k-th partial sums of squares (A000290). A259775

Numbers k such that binomial(k²,k) == 0 (mod k³). A371474