Properties of the Number -4215

Two Hundred Fifteen

Basics

Value: -4216 → -4215 → -4214

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 281

Divisors: 1, 3, 5, 15, 281, 843, 1405, 4215

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1000001110111

Octal: -10167

Duodecimal: -2533

Hexadecimal: -1077

Square: 17766225

Square Root: 64.92303135251773

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

G.f.: A(x) = 1 + x/exp( ∑_k>=1 (A((-1)^k*x) - 1)^k/k ). A157674

Expansion of 1/(1+x+2·x²-2·x³). A77977

Expansion of sqrt(1-4·x)/(1-3·x). A137720

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 141", based on the 5-celled von Neumann neighborhood. A270285

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood. A270912

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

Number of compositions of n into nonprime numbers. A52284

Number of compositions of n where each part after the first is either twice or half the prior part. A342331

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

Centered dodecahedral numbers. A5904