Properties of the Number -220220

Two Hundred Twenty Thousand Two Hundred Twenty

Basics

Value: -220221 → -220220 → -220219

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 7 × 11 ² × 13

Divisors: 1, 2, 4, 5, 7, 10, 11, 13, 14, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101110000111100

Octal: -656074

Duodecimal: -A7538

Hexadecimal: -35c3c

Square: 48496848400

Square Root: 469.27603816943395

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 T(n,k) of number of minimal 4-covers of a labeled n-set that cover k points of that set uniquely (k=4,..,n). A57965

Triangle read by rows: T(n, m) = (n+1-m)*C(2·n+2-m, m)*C(3·n-3·m+2, n-m+1)/(2·n-m+2). A360546

Number of ways to pay n dollars using Canadian coins, that is: nickels (5 cents), dimes (10 cents), quarters (25 cents), loonies (100 cents or $1 coins) and toonies ($2 coins). A307849

Number of ordered set partitions of [n] where the maximal block size equals nine. A320765

Expansion of (1+6·x+16·x²+8·x³+x⁴)/(1-x)⁸. A244883