Properties of the Number -2499

Four Hundred Ninety-Nine

Basics

Value: -2500 → -2499 → -2498

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 ² × 17

Divisors: 1, 3, 7, 17, 21, 49, 51, 119, 147, 357

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100111000011

Octal: -4703

Duodecimal: -1543

Hexadecimal: -9c3

Square: 6245001

Square Root: 49.98999899979995

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

Expansion of e.g.f. arcsin(arcsin(x)*log(x+1)). A12305

Expansion of e.g.f. sinh(arcsin(x) * log(x+1)). A12309

Determinant of the n X n tridiagonal matrix M with the elements on the diagonals equal to 1, except M(n,n-1)=M(n-1,n)=n. A80322

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 141", based on the 5-celled von Neumann neighborhood. A270285

a(n) = n*(n+2) = (n+1)² - 1. A5563

a(n) = 4·n² - 1. A466

a(n) = n² - 2·n. A67998

a(n) is the smallest number k such that the symmetric representation of σ(k) has n parts. A239663

Square array read by antidiagonals in which T(n,k) is the n-th number j with the property that the symmetric representation of σ(j) has k parts, with j >= 1, n >= 1, k >= 1. A240062

a(0) = 0, a(1) = 1 and a(n) = n² - 1 with n >= 2. A132411