Properties of the Number -10287

Ten Thousand Two Hundred Eighty-Seven

Basics

Value: -10288 → -10287 → -10286

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 127

Divisors: 1, 3, 9, 27, 81, 127, 381, 1143, 3429, 10287

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10100000101111

Octal: -24057

Duodecimal: -5B53

Hexadecimal: -282f

Square: 105822369

Square Root: 101.42484902626181

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) = 3ⁿ * [xⁿ] ∏_k>=1 (1 + 3·x^k)^1/3. A370712

q-Fibonacci numbers for q=2, scaling a(n-2). A15459

T(n,k) = Number of n X k 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1's. A297802

Number of ways to write n as an ordered sum of 9 nonzero triangular numbers. A340954

Index sequence to A089840: positions of bijections that preserve A127302 (the non-oriented form of binary trees) and whose behavior does not depend on whether there are internal or terminal nodes (leaves) in the neighborhood of any vertex. A153830

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nXk array. A219217

Lesser of two consecutive numbers each divisible by a fourth power. A68782

a(n) = n*(14·n + 3). A195025

Numbers of the form 86+p² (where p is a prime). A138692

Triangle T(n,k) read by rows: T(n,k) is the number of rooted hypertrees on n labeled vertices with k hyperedges, n >= 2, k >= 1. A210586