Properties of the Number 61693

Sixty-One Thousand Six Hundred Ninety-Three

Basics

Value: 61692 → 61693 → 61694

Parity: odd

Prime: No

Previous Prime: 61687

Next Prime: 61703

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 17 × 19 × 191

Divisors: 1, 17, 19, 191, 323, 3247, 3629, 61693

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111000011111101

Octal: 170375

Duodecimal: 2B851

Hexadecimal: f0fd

Square: 3806026249

Square Root: 248.3807560983741

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

Maximum starting value of X such that repeated replacement of X with X-ceiling(X/5) requires n steps to reach 0. A279075

Numbers k such that 5·10^k + R_k + 2 is a prime, where R_k = 11...1 is the repunit (A002275) of length k. A103005

Number of n X 2 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4. A239594

a(n) = prime(n)³ mod (n² + prime(n)²). A243769

Least k such that σ(k·n)/τ(k·n) = σ(k·n+1)/τ(k·n+1), or 0 if no such k exists. A274774

Generalized Bell numbers. A61693