Properties of the Number 16663

Sixteen Thousand Six Hundred Sixty-Three

Basics

Value: 16662 → 16663 → 16664

Parity: odd

Prime: No

Previous Prime: 16661

Next Prime: 16673

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 19 × 877

Divisors: 1, 19, 877, 16663

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000100010111

Octal: 40427

Duodecimal: 9787

Hexadecimal: 4117

Square: 277655569

Square Root: 129.0852431535069

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

Number of ordered triples (a, b, c) with gcd(a, b, c) = 1 and 1 <= {a, b, c} <= n. A71778

Beastly (or hateful) numbers: numbers containing the string 666 in their decimal expansion. A51003

a(n) = n*(94 + 5·n + 25·n² - 5·n³ + n⁴)/120. A57703

Number of n X 2 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,3,0,1,2 for x=0,1,2,3,4. A197229

Least inverse of A048182. A48183

Numbers k such that φ(k) > φ(k+1) > φ(k+2) > φ(k+3) where φ is the Euler totient function (A000010). A326817

Numbers whose base-4 representation contains exactly three 0's and four 1's. A45032

Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1100-0111-0011 pattern in any orientation. A147213

Expansion of 1/(1 - x - x⁴ + x⁶). A174522

Decimal expansion of log(40). A16663