Properties of the Number -250

Two Hundred Fifty

Basics

Value: -251 → -250 → -249

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 ³

Divisors: 1, 2, 5, 10, 25, 50, 125, 250

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111010

Octal: -372

Duodecimal: -18A

Hexadecimal: -fa

Square: 62500

Square Root: 15.811388300841896

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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 η(q)⁵ * η(q³) * η(q⁶)⁴ / η(q²)⁴ in powers of q. A214262

McKay-Thompson series of class 16B for the Monster group. A29839

Alternating sum σ(1)-σ(2)+σ(3)-σ(4)+...+((-1)ⁿ⁺¹)*σ(n). A68762

Deficiency computed for conjugated prime factorization: a(n) = A033879(A122111(n)). A323174

a(n) = 2ⁿ * ∑_k=0..n k^p*q^k, where p=2, q=-1/2. A232603

a(n) = prime(n+3)*prime(n) - prime(n+1)*prime(n+2). A117301

Triangle T, read by rows, where matrix power T⁵ has powers of 5 in the secondary diagonal: [T⁵](n+1,n) = 5ⁿ⁺¹, with all 1's in the main diagonal and zeros elsewhere. A117256

Shifts 3 places left under inverse binomial transform. A10741

Expansion of ∏_k>=1 (1 - 2x^k). A70877

Irregular triangle read by rows of normalized Girard-Waring formula (cf. A210258), for m=6 data values. A288211