Properties of the Number -29981

Twenty-Nine Thousand Nine Hundred Eighty-One

Basics

Value: -29982 → -29981 → -29980

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 4283

Divisors: 1, 7, 4283, 29981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010100011101

Octal: -72435

Duodecimal: -15425

Hexadecimal: -751d

Square: 898860361

Square Root: 173.1502237942533

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

Number of Twopins positions. A5686

Positions in A181391 where the terms listed in A171863 appear. A171864

Sum of first n terms of A_n (using absolute values of terms). A39928

The total number of different isosceles trapezoids, excluding squares, that can be drawn on an n X n square grid where the corners of each individual trapezoid lie on a lattice point. A272459

Antidiagonal sums of the triangle A099557. A99558

Cumulative sum of absolute values of coefficients of q²ⁿ in the series expansion of Ramanujan's mock θ function f(q). A109471