Properties of the Number -1248

Two Hundred Forty-Eight

Basics

Value: -1249 → -1248 → -1247

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁵ × 3 × 13

Divisors: 1, 2, 3, 4, 6, 8, 12, 13, 16, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011100000

Octal: -2340

Duodecimal: -880

Hexadecimal: -4e0

Square: 1557504

Square Root: 35.32704346531139

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

a(n) = ∑_{d∣n, d == 1 mod 4} d² - ∑_{d∣n, d == 3 mod 4} d². A2173

Expansion of (φ(-q) / φ(-q⁵))² in powers of q where φ() is a Ramanujan θ function. A138518

Expansion of (1/q) * φ(-q) * φ(q⁴) / (φ(q) * ψ(q⁸)) in powers of q where φ(), ψ() are Ramanujan θ functions. A215346

Expansion of (φ(-q)³ / φ(-q³))² in powers of q where φ() is a Ramanujan θ function. A229616

Expansion of (elliptic_E / elliptic_K)^1/2 in powers of q. A261977

Expansion of ∏_n>=1 (1 + (16·x)ⁿ)^-1/4. A303131

Low temperature series for spin-1/2 Ising antiferromagnetic susceptibility for 3-dimensional simple cubic lattice. A2915

Coefficient array of numerator polynomials of the ordinary generating functions for the alternating sums of powers for the numbers 1,2,...,2·n+1. A196848

Expansion of η(q²)¹² / theta₃(q)³ in powers of q. A29769

McKay-Thompson series of class 12d for Monster. A58492