Properties of the Number -4495

Four Hundred Ninety-Five

Basics

Value: -4496 → -4495 → -4494

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 29 × 31

Divisors: 1, 5, 29, 31, 145, 155, 899, 4495

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

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Representations

Binary: -1000110001111

Octal: -10617

Duodecimal: -2727

Hexadecimal: -118f

Square: 20205025

Square Root: 67.04476116744694

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

Triangle read by rows: row n gives coefficients C(n,j) for a Sheffer sequence (binomial-type) with lowering operator (D-1)/2 + T{ (1/2) * exp[(D-1)/2] } where T(x) is Cayley's Tree function. A135494

Expansion of e.g.f. ∏_k>=1 sech(x^k) (even powers only). A330517

a(n) = 2^2n-1 sin(nB)/(3 sqrt(15)), where B is the angle opposite side CA in a triangle ABC having sidelengths |BC|=2, |CA| = 3, |AB| = 4; ABC is the smallest integer-sided scalene triangle. A375884

Tetrahedral (or triangular pyramidal) numbers: a(n) = C(n+2,3) = n*(n+1)*(n+2)/6. A292

a(n) = 1² + 3² + 5² + 7² + ... + (2·n-1)² = n*(4·n² - 1)/3. A447

13-gonal (or tridecagonal) numbers: a(n) = n*(11·n - 9)/2. A51865

Array read by antidiagonals: A(n,k) is the number of binary matrices with k columns and any number of nonzero rows with n ones in every column and columns in nonincreasing lexicographic order. A330942

Numbers k such that x^k + x + 1 is irreducible over GF(2). A2475

Triangle read by rows: number of connected graphs with k >= 0 edges and n nodes (1<=n<=k+1). A54923

G.f. A(x) satisfies A(x) = 1 + x·A(x)⁴*A(-x)³. A143547