Properties of the Number -2305

Three Hundred Five

Basics

Value: -2306 → -2305 → -2304

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 5 × 461

Divisors: 1, 5, 461, 2305

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -100100000001

Octal: -4401

Duodecimal: -1401

Hexadecimal: -901

Square: 5313025

Square Root: 48.010415536631214

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: T(0,0)=1; T(n,k) is the coefficient of x^k in the polynomial (-1)ⁿ*p(n,x), where p(n,x) is the characteristic polynomial of the n X n tridiagonal matrix with 3's on the main diagonal and -1's on the super- and subdiagonal (n >= 1; 0 <= k <= n). A123965

Numerator of Hermite(n, 5/18). A159546

Duplicate of A123965. A124025

Expansion of ∏_k>=2 (1 - x^k)^k. A298599

Sequence composed of consecutive square matrices A(d) with dimension d=1,2,3,... Matrix elements are arranged by increasing row index i, and, within fixed i, by increasing column index j. Each block A(d) is related to the inverse of a class of integer Vandermonde matrices. A347781

a(n) = n² + 1. A2522

Number of compositions of n if all summand runs are kept together. A274174

a(n) = 4·n² + 1. A53755

Coordination sequence for "cab" 3D uniform tiling formed from octahedra and truncated cubes. A299266

Diagonal in square spiral or maze arrangement of natural numbers. A80335