Properties of the Number 68646

Sixty-Eight Thousand Six Hundred Forty-Six

Basics

Value: 68645 → 68646 → 68647

Parity: even

Prime: No

Previous Prime: 68639

Next Prime: 68659

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 17 × 673

Divisors: 1, 2, 3, 6, 17, 34, 51, 102, 673, 1346

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110000100110

Octal: 206046

Duodecimal: 33886

Hexadecimal: 10c26

Square: 4712273316

Square Root: 262.00381676609214

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 reduced words of length n in the Weyl group A₁₇. A161497

Mahonian numbers T(n,6) (cf. A008302). A242656

Irregular table read by rows: Take a Reuleaux triangle with all diagonals drawn, as in A340639. Then T(n,k) = number of k-sided polygons in that figure for k >= 3. A340614

Primes in which a string of 5's is sandwiched between two 1's. A68646