Properties of the Number -27229

Twenty-Seven Thousand Two Hundred Twenty-Nine

Basics

Value: -27230 → -27229 → -27228

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 73 × 373

Divisors: 1, 73, 373, 27229

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101001011101

Octal: -65135

Duodecimal: -13911

Hexadecimal: -6a5d

Square: 741418441

Square Root: 165.01212076693034

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

Beach-Williams Pell numbers of type k² + 4. A212083

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A281165

Number of intersection points formed by drawing the line segments connecting any two lattice points of an n X m convex lattice polygon written as triangle T(n,m), n >= 1, 1 <= m <= n. A288180

Average of squares of successive primes: a(n) = (prime(n+1)² + prime(n)²)/2, with n >= 2. A75892

Sequence a(n) = 3·A002559(n) - 2 determining the principal reduced indefinite binary quadratic form [1, a(n), -a(n)] for Markoff triples. A324250

Numbers k such that φ(k) = φ(k+1) + φ(k+2). A197112

Numbers n where τ(n) and n-τ(n) are perfect squares, with τ(n) the number of divisors of n (A000005). A245197

Base-9 palindromes that start with 4. A43031

Number of nX4 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A281161

Number of n X 5 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A281162