Properties of the Number -807

Eight Hundred Seven

Basics

Value: -808 → -807 → -806

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 269

Divisors: 1, 3, 269, 807

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100100111

Octal: -1447

Duodecimal: -573

Hexadecimal: -327

Square: 651249

Square Root: 28.407745422683583

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 ∑_k>=1 x^k/(1 + x^k)³. A320900

McKay-Thompson series of class 36e for the Monster group. A112175

Expansion of 1 / ∑_{k in Z} x^3·k / (1 - x^5·k+1). A375064

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 329", based on the 5-celled von Neumann neighborhood. A271276

a(n) = (-1)ⁿ*n!*[xⁿ] exp(-3·x)/(1 - 2·x). A343582

Antisigma(n): Sum of the numbers less than n that do not divide n. A24816

Number of fractions in Farey series of order n. A5728

Start with 1 and repeatedly reverse the decimal digits and add 4 to get the next term. A117828

Flavius Josephus's sieve: Start with the natural numbers; at the k-th sieving step, remove every (k+1)-st term of the sequence remaining after the (k-1)-st sieving step; iterate. A960

Number of compositions of n whose negation is not unimodal. A332669