Properties of the Number -284066

Two Hundred Eighty-Four Thousand Sixty-Six

Basics

Value: -284067 → -284066 → -284065

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 173 × 821

Divisors: 1, 2, 173, 346, 821, 1642, 142033, 284066

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000101010110100010

Octal: -1052642

Duodecimal: -118482

Hexadecimal: -455a2

Square: 80693492356

Square Root: 532.9784235782909

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

Triangle read by rows, T(n,k) = ∑_j=0..n (-1)^n-j*C(-j,-n)*S1(j,k), S1 the Stirling cycle numbers A132393, for n>=0 and 0<=k<=n. A269951

Expansion of e.g.f. log(1-x)² * exp(x) / (2 * (1-x)). A381024

a(1)=-1, a(2)=2, thereafter a(n) = (1/(2n))*((7n-22)a(n-1)+2(2n-1)a(n-2)). A210685