Properties of the Number 68213

Sixty-Eight Thousand Two Hundred Thirteen

Basics

Value: 68212 → 68213 → 68214

Parity: odd

Prime: Yes

Previous Prime: 68209

Next Prime: 68219

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 68213

Divisors: 1, 68213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000101001110101

Octal: 205165

Duodecimal: 33585

Hexadecimal: 10a75

Square: 4653013369

Square Root: 261.17618574441275

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

Third term of weak prime septet: p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3). A54836

Second term of weak prime sextet: p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3). A54829

Third term of weak prime sextet: p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2). A54830

Integers k such that 2^k-1 == 1 (mod k) and 2^m-1 == 1 (mod m), where m = k*(A000265(k-1) - 1) + 1 and A000265 gives the odd part of its argument. A187849

Duplicate of A065966. A68213