Properties of the Number 52157

Fifty-Two Thousand One Hundred Fifty-Seven

Basics

Value: 52156 → 52157 → 52158

Parity: odd

Prime: No

Previous Prime: 52153

Next Prime: 52163

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 7451

Divisors: 1, 7, 7451, 52157

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101110111101

Octal: 145675

Duodecimal: 26225

Hexadecimal: cbbd

Square: 2720352649

Square Root: 228.3790708449441

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

Numbers k such that (2·k)!/(2*(k!)²) - 1 is prime. A112861

Denominators of continued fraction convergents to sqrt(874). A42689

Concatenation of n-th nonprime and n-th prime. A253911

Pisot sequence E(8,12), a(n) = floor( a(n-1)²/a(n-2) + 1/2 ). A274951

Number of n X 5 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the sum of elements above it, modulo 3. A238809

Least positive integer r such that there exists an integer s, 0 <= s < r gcd(r-i, s-j) > 1 for all integers i, j with 0 <= i, j < n. A52157