Properties of the Number 241

Two Hundred Forty-One

Basics

Value: 240 → 241 → 242

Parity: odd

Prime: Yes

Previous Prime: 239

Next Prime: 251

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 241

Divisors: 1, 241

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110001

Octal: 361

Duodecimal: 181

Hexadecimal: f1

Square: 58081

Square Root: 15.524174696260024

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: Yes

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

The prime numbers. A40

Prime numbers at the beginning of the 20th century (today 1 is no longer regarded as a prime). A8578

Pythagorean primes: primes of the form 4·k + 1. A2144

Numbers k such that (11·10^k + 19)/3 is prime. A270339

Greater of twin primes. A6512

Central polygonal numbers: a(n) = n² - n + 1. A2061

Odd primes. A65091

Lucky numbers. A959

Primes of the form 6m + 1. A2476

Twin primes. A1097

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