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Properties of the Number -3231

Two Hundred Thirty-One

Basics

Value: -3232 → -3231 → -3230

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 2 × 359

Divisors: 1, 3, 9, 359, 1077, 3231

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -110010011111

Octal: -6237

Duodecimal: -1A53

Hexadecimal: -c9f

Square: 10439361

Square Root: 56.84188596448925

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(0) = 1, a(1) = 2, a(2) = 3; thereafter, a(n) = a(n-1) + (sum of prior prime terms or whose negatives are prime) - (sum of prior composite terms or whose negatives are composite). A381150
First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 369", based on the 5-celled von Neumann neighborhood. A270793
First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 485", based on the 5-celled von Neumann neighborhood. A272505
(∑t=0..oo ((-1)t*(2·t+1)*q(2·t+12)))3 * (∑t=0..oo q(2·t+12)) = ∑k=0..oo a(k)*q8·k+4. A322031
Coordination sequence for "flu" 3D uniform tiling formed from tetrahedra, rhombicuboctahedra, and cubes. A299272
a(n) = a(n-1) + a(floor(n/2)), a(1) = 1. A33485
Number of partitions of n in which the sequence of frequencies of the summands is nonincreasing. A100882
Generalized 21-gonal (or icosihenagonal) numbers: m*(19·m - 17)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303298
Generalized 23-gonal (or icositrigonal) numbers: m*(21·m - 19)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303303
Numbers k such that the largest prime factor of k2-1 is 101. A181568