Properties of the Number 49991

Forty-Nine Thousand Nine Hundred Ninety-One

Basics

Value: 49990 → 49991 → 49992

Parity: odd

Prime: Yes

Previous Prime: 49957

Next Prime: 49993

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 49991

Divisors: 1, 49991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100001101000111

Octal: 141507

Duodecimal: 24B1B

Hexadecimal: c347

Square: 2499100081

Square Root: 223.58667223249242

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

Primes with either no internal digits or all internal digits are 9. A69684

Primes containing 999 as a substring. A167292

Primes having Fibonacci prime gaps to both neighbor primes. A353135

Numbers k such that R(k+9) = 5. A86949

Primes of the form perfect_power(n)+n. A75781

Primes of the form 5·10ⁿ-9. A177504

Primes of the form 5n² - 9. A201790

Expansion of (1 + 2·x³)/(1 - x - 4·x⁷). A98528

Number of "forceless" (or "useless") sequences in n-column Nonogram puzzle. A304179

Full autoinsertable of reversed multidigit primes are such primes that remain prime after all the possible internal autoinsertions of the reversed prime, one at a time. A335314