Properties of the Number -1249

Two Hundred Forty-Nine

Basics

Value: -1250 → -1249 → -1248

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 1249

Divisors: 1, 1249

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011100001

Octal: -2341

Duodecimal: -881

Hexadecimal: -4e1

Square: 1560001

Square Root: 35.34119409414458

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) satisfies the condition that both G(x) = A(x/G(x)) and H(x) = A(x·H(x)) have zeros for every other coefficient after initial terms; g.f. of dual sequence A157303 satisfies the same condition. A157306

Numerator of Laguerre(n, 12). A160671

Expansion of f(-x)¹¹ / f(-x³) + 27·x * f(-x³)¹¹ / f(-x) in powers of·where f() is a Ramanujan θ function. A258724

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 278", based on the 5-celled von Neumann neighborhood. A271098

Number of partitions of n into parts each of which is used a different number of times. A98859

Primes congruent to 1 (mod 12). A68228

Primes of form 8n+1, that is, primes congruent to 1 mod 8. A7519

a(n) = 2·n² - 1. A56220

Egyptian fraction expansion of sqrt(3). A224231

Primes of form 10·k + 9. A30433