Properties of the Number -1219

Two Hundred Nineteen

Basics

Value: -1220 → -1219 → -1218

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 23 × 53

Divisors: 1, 23, 53, 1219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011000011

Octal: -2303

Duodecimal: -857

Hexadecimal: -4c3

Square: 1485961

Square Root: 34.91418050019218

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

First column in inverse of Euler φ sequence matrix. A106479

Numerator of f(A159992(n)/A159993(n)) with f(x)=x³+2·x²+10·x-20, denominator=A159995. A159994

Sum at 45 degrees to horizontal in triangle of A081498. A81499

Triangle read by rows, expansion of 1/(1-2·y*x-x+x²-y·x²). A164976

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 1", based on the 5-celled von Neumann neighborhood. A269909

Expansion of ∏_k>0 (1+sqrt(1-4·x^k))/2. A309867

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 413", based on the 5-celled von Neumann neighborhood. A272010

Expansion of (1-x)^-1/(1+2·x+2·x³). A77927

Centered triangular numbers: a(n) = 3·n*(n-1)/2 + 1. A5448

Number of partitions of n into distinct parts >= 2. A25147