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Properties of the Number -280772

Two Hundred Eighty Thousand Seven Hundred Seventy-Two

Basics

Value: -280773 → -280772 → -280771

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 2 × 17 × 4129

Divisors: 1, 2, 4, 17, 34, 68, 4129, 8258, 16516, 70193

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1000100100011000100

Octal: -1044304

Duodecimal: -116598

Hexadecimal: -448c4

Square: 78832915984

Square Root: 529.8792315235614

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

The O(1) loop model on the square lattice is defined as follows: At every vertex the loop turns to the left or to the right with equal probability, unless the vertex has been visited before, in which case the loop leaves the vertex via the unused edge. Every vertex is visited twice. The probability that a face of the lattice on an n X infinity cylinder is surrounded by zero loops is conjectured to be given by a(n)/AHT(n)2, where AHT(n) is the number of n X n half turn symmetric alternating sign matrices. A92372