Properties of the Number 32481

Thirty-Two Thousand Four Hundred Eighty-One

Basics

Value: 32480 → 32481 → 32482

Parity: odd

Prime: No

Previous Prime: 32479

Next Prime: 32491

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 401

Divisors: 1, 3, 9, 27, 81, 401, 1203, 3609, 10827, 32481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111111011100001

Octal: 77341

Duodecimal: 16969

Hexadecimal: 7ee1

Square: 1055015361

Square Root: 180.22485955050706

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

Relative of Hofstadter Q-sequence: a(n) = max(0, n+32478) for n <= 0; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 0. A274058

Coefficient triangle of polynomials (falling powers) related to convolutions of A001045(n+1), n >= 0, (generalized (1,2)-Fibonacci). Companion triangle is A073399. A73400

Composite numbers for which A324644(n)/A324198(n) = 2 and σ(n) == 2 (mod 4). A371082

Coefficient triangle of polynomials (rising powers) related to convolutions of A001045(n+1), n >= 0, (generalized (1,2)-Fibonacci). Companion triangle is A073401. A73402

Expansion of e.g.f. exp(x/(1 - x³)^2/3). A373518

a(n) = (2·n+1)*(10·n+1). A33574

Number of compositions of n into parts with distinct multiplicities and with exactly nine parts. A321779

G.f. -x*(x-1)*(1+x)/(1-x-8·x²-x³+x⁴). A171065

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 645", based on the 5-celled von Neumann neighborhood. A273316

a(n) is the number of strings of length n over the alphabet {a,b,c} with the number of a's divisible by 3, and the number of b's and c's is at most 3. A340169