Properties of the Number 68825

Sixty-Eight Thousand Eight Hundred Twenty-Five

Basics

Value: 68824 → 68825 → 68826

Parity: odd

Prime: No

Previous Prime: 68821

Next Prime: 68863

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 2753

Divisors: 1, 5, 25, 2753, 13765, 68825

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000110011011001

Octal: 206331

Duodecimal: 339B5

Hexadecimal: 10cd9

Square: 4736880625

Square Root: 262.3451924468981

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 length-(4+1) 0..n arrays with new repeated values introduced in sequential order starting with zero. A268263

Numbers k such that 129·2^k-1 is prime. A50590

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction. A250877

Indices of prime Bell numbers A000110. A51130

Prime Bell numbers (A000110). A51131

Number of (6+1) X (n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction. A250883

a(1) = 3 and the sequence of smallest primes not included earlier, the concatenation of which is the cyclic pattern 357913579135... A68825