Properties of the Number -220647

Two Hundred Twenty Thousand Six Hundred Forty-Seven

Basics

Value: -220648 → -220647 → -220646

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 19 × 79

Divisors: 1, 3, 7, 19, 21, 49, 57, 79, 133, 147

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110101110111100111

Octal: -656747

Duodecimal: -A7833

Hexadecimal: -35de7

Square: 48685098609

Square Root: 469.73077395461326

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

Starting with a(0) = 1, smallest number k > a(n-1) such that, for all a(m) with m < n, k + a(m) is not squarefree. A80793

Intersection of A065764 and A065765: n such that·and y exist with σ[x²] = n = σ[2*(y²)]. A65767