Properties of the Number -242556

Two Hundred Forty-Two Thousand Five Hundred Fifty-Six

Basics

Value: -242557 → -242556 → -242555

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 17 × 29 × 41

Divisors: 1, 2, 3, 4, 6, 12, 17, 29, 34, 41

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -111011001101111100

Octal: -731574

Duodecimal: -B8450

Hexadecimal: -3b37c

Square: 58833413136

Square Root: 492.499746192828

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 + 3) = 35·a(n + 2) - 35·a(n + 1) + a(n), with a(0) = 0, a(1) = 6, a(2) = 210. A29549

Sum of the areas of the first n+1 Pell triangles. A96979

Eighth column of quintinomial coefficients. A64057

Triangular numbers representable as x!/y! with y < x-1. A227027

Triangular numbers that are the product of a triangular number and an oblong number. A253652

Triangle T(n, k) read by rows, n > 0 and 0 < k <= 3^n-1: T(n, k) = A321768(n, k) * A321769(n, k) / 2. A322170

Triangular numbers whose largest proper divisor is also triangular. A76170

Duplicate of A029549. A76715