Properties of the Number -220817

Two Hundred Twenty Thousand Eight Hundred Seventeen

Basics

Value: -220818 → -220817 → -220816

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 439 × 503

Divisors: 1, 439, 503, 220817

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101111010010001

Octal: -657221

Duodecimal: -A7955

Hexadecimal: -35e91

Square: 48760147489

Square Root: 469.9116938319369

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

Numbers k such that k and k+2 have the same number (A000005) and sum of divisors (A000203). A229254

Solutions to φ(x + ω(x)) = φ(x) + d(x), where φ() = A000010(), d() = A000005() and ω() = A001221(). A63868

Numbers k such that A065608(k) = A065608(k+2). A65064

Numbers k such that s(k) = s(k+2), where s(k) is the sum of odd divisors of k (A000593). A387920