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Properties of the Number -32385

Thirty-Two Thousand Three Hundred Eighty-Five

Basics

Value: -32386 → -32385 → -32384

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 17 × 127

Divisors: 1, 3, 5, 15, 17, 51, 85, 127, 255, 381

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -111111010000001

Octal: -77201

Duodecimal: -168A9

Hexadecimal: -7e81

Square: 1048788225

Square Root: 179.95832850968583

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 non-repetitive Kaprekar binary numbers in decimal. A163205
Number of holes in a sheet of paper when you fold it n times and cut off the four corners. A274230
a(n) = binomial(2n-1,2). A134057
Triangular numbers with property that digits alternate in parity. A68882
a(n) is the numerator of the probability that a particular one of the A335573(n+1) fixed polyominoes corresponding to the free polyomino with binary code A246521(n+1) appears in internal diffusion-limited aggregation on the square lattice. A368392
Triangle T(n, k) = c(n, q)/c(k, q) if k <= floor(n/2), otherwise c(n, q)/c(n-k, q), where c(n, q) = ∏j=1..n (1 - qj) and q = 2, read by rows. A174387
Triangular numbers with sum of digits = 21. A68131
Permutation of natural numbers: a(1) = 1; a(2n) = nontriangular(a(n)), a(2n+1) = triangular(1+a(n)), where triangular = A000217, nontriangular = A014132. A257798
Extreme points of set of n X n symmetric substochastic matrices. A53553
a(n) = 144·n2 - n. A156635