Properties of the Number -4815

Eight Hundred Fifteen

Basics

Value: -4816 → -4815 → -4814

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 107

Divisors: 1, 3, 5, 9, 15, 45, 107, 321, 535, 963

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001011001111

Octal: -11317

Duodecimal: -2953

Hexadecimal: -12cf

Square: 23184225

Square Root: 69.39020103732227

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

Expansion of g.f. x / reversion(x - x² - x³). A217596

a(0) = 1; a(n) = ∑_{k=0..floor((n-1)/2)} (-4)^k * a(k) * a(n-2·k-1). A352011

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 337", based on the 5-celled von Neumann neighborhood. A271288

Number of n-stacks with strictly receding walls, or the number of Type A partitions of n in the sense of Auluck (1951). A1522

Multiples of 15 containing a 15 in their decimal representation. A121035

13-gonal (or tridecagonal) numbers: a(n) = n*(11·n - 9)/2. A51865

Numbers k such that 7^k - 2 is a prime. A90669

Numbers n such that the decimal expansions of both n and n² have 1 as smallest digit and 8 as largest digit. A257211

Triangle read by rows: T(n,k) gives the number of ballot sequences of length n having largest descent k, n>=0, 0<=k<=n. A238128

Sums of five consecutive squares: a(n) = n² + (n+1)² + (n+2)² + (n+3)² + (n+4)². A27578