Properties of the Number 83865

Eighty-Three Thousand Eight Hundred Sixty-Five

Basics

Value: 83864 → 83865 → 83866

Parity: odd

Prime: No

Previous Prime: 83857

Next Prime: 83869

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 5591

Divisors: 1, 3, 5, 15, 5591, 16773, 27955, 83865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100011110011001

Octal: 243631

Duodecimal: 40649

Hexadecimal: 14799

Square: 7033338225

Square Root: 289.5945441475029

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 4·k-1, 8·k-1, 16·k-1 and 32·k-1 are all primes. A101794

Numbers n for which 2n-1, 4n-1, 8n-1, 16n-1 and 32n-1 are primes. A124017

Sums of (one or more distinct) k-perfect numbers. A83865