Properties of the Number -145131

One Hundred Forty-Five Thousand One Hundred Thirty-One

Basics

Value: -145132 → -145131 → -145130

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 6911

Divisors: 1, 3, 7, 21, 6911, 20733, 48377, 145131

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100011011011101011

Octal: -433353

Duodecimal: -6BBA3

Hexadecimal: -236eb

Square: 21063007161

Square Root: 380.96062788692484

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

Total size of all principal order ideals in the poset of integer partitions of n with the refinement order. A265947

Let [n] = {1,2,...,n}. Let G_n be the union of all closed line segments joining any two elements of [n] X [n] along a vertical or horizontal line, or along a line with slope +-1. Then a(n) = combined total of the number of (nondegenerate) triangles and rectangles for which all edges are subsets of G_n. A98921