Properties of the Number -23168

Twenty-Three Thousand One Hundred Sixty-Eight

Basics

Value: -23169 → -23168 → -23167

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁷ × 181

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 181, 362

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101101010000000

Octal: -55200

Duodecimal: -114A8

Hexadecimal: -5a80

Square: 536756224

Square Root: 152.21038072352357

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

a(n) = 2·a(n-1) + 2·a(n-2) for n > 1; a(0)=2, a(1)=2. A80040

T(n,k)=Number of length n+2 0..k arrays with no pair in any consecutive three terms totalling exactly k. A245995

Values of m such that m² + 6 is a triangular number (A000217). A276600

Primitive practical numbers of the form 2ⁱ * prime(k). A308710

Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive step pattern up, down, up, down; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-3)/2)), read by rows. A230797

Primitive terms of A388271. A388272

a(n) = 8·a(n-1) - 8·a(n-2) for n > 1; a(0) = 1, a(1) = 10. A164546

One half of the y members of the positive proper solutions (x = x2(n), y = y2(n)) of the second class for the Pell equation x² - 2·y² = +7². A275796

a(n) = σ[k](n) - φ(n)^k - d(n)^k for k=3. A79539

Number of permutations of 1..n avoiding adjacent step pattern up, down, up, down. A177520