Properties of the Number -2727

Seven Hundred Twenty-Seven

Basics

Value: -2728 → -2727 → -2726

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 101

Divisors: 1, 3, 9, 27, 101, 303, 909, 2727

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101010100111

Octal: -5247

Duodecimal: -16B3

Hexadecimal: -aa7

Square: 7436529

Square Root: 52.22068555658763

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>0 ((1-x^5k-2) * (1-x^5k-3)/((1-x^5k-1) * (1-x^5k-4)))⁴ in powers of x. A285444

a(0)=a(1)=1, a(n) = 2·a(n-1)- A010686(n), n>1. A173114

Numerator of Hermite(n, 9/16). A159525

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 405", based on the 5-celled von Neumann neighborhood. A271815

a(n) = 9ⁿ-8ⁿ-7ⁿ-6ⁿ-5ⁿ-4ⁿ-3ⁿ-2ⁿ-1. A147996

Doublets: base-10 representation is the juxtaposition of two identical strings. A20338

Numbers k such that the k-th partition number A000041(k) is prime. A46063

Smaller of two consecutive numbers each divisible by a cube greater than one. A68140

Toothpick sequence on hexagonal net. A182840

T(n,k)=Number of 0..2 arrays of length n+2·k-1 with sum less than 2·k in any length 2k subsequence (=less than 50% duty cycle). A212729