Properties of the Number -1799

Seven Hundred Ninety-Nine

Basics

Value: -1800 → -1799 → -1798

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 7 × 257

Divisors: 1, 7, 257, 1799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11100000111

Octal: -3407

Duodecimal: -105B

Hexadecimal: -707

Square: 3236401

Square Root: 42.41462012089699

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

Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(n,k) = n! * ∑_j=0..n (-1)^n-j * j^k/j!. A368724

Triangle of Salie numbers T(n,k) for negative n,k, n < k. A98435

a(n) = n! * ∑_k=0..n (-1)^n-k * k³ / k!. A368716

a(n)=(7/4)*(1+3*(-7)^n-1). A165639

a(n) = a(n-1) + a(n-2) - a(n-3) - a(n-8), starting 1,1,2,2,3,3,4,4. A172397

T(n, k) = [x^k] ∑_j=0..n j!*binomial(x, j), for 0 <= k <= n, triangle read by rows. A176663

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 429", based on the 5-celled von Neumann neighborhood. A272114

Expansion of e.g.f. arctan(arctanh(x)*cos(x)) (odd powers only). A12742

a(n) = 2·n² - 1. A56220

Number of integer partitions of n having a unique mode equal to the mean, i.e., partitions whose mean appears more times than each of the other parts. A363723