Properties of the Number 18241

Eighteen Thousand Two Hundred Forty-One

Basics

Value: 18240 → 18241 → 18242

Parity: odd

Prime: No

Previous Prime: 18233

Next Prime: 18251

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 17 × 29 × 37

Divisors: 1, 17, 29, 37, 493, 629, 1073, 18241

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011101000001

Octal: 43501

Duodecimal: A681

Hexadecimal: 4741

Square: 332734081

Square Root: 135.05924625881784

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

a(n) = n*(n²+3·n-1)/3. A84990

Numbers m such that the factorizations of m..m+4 have the same number of primes (including multiplicities). A45941

Numbers m such that the factorizations of m..m+5 have the same number of primes (including multiplicities). A45942

a(n) = (prime(n)² + 1)/2. A66885

Third row of Pascal-(1,5,1) array A081580. A81589

Odd composite integers m such that A006497(m) == 3 (mod m). A335669

Expansion of (1+2·x+3·x²)/((1-x)³*(1-x²)). A55232

NSW pseudoprimes: odd composite numbers k such that A002315((k-1)/2) == 1 (mod k). A330276

Least k such that prime(n)² divides binomial(2k,k). A110494

Pell pseudoprimes: odd composite numbers n such that P(n)-Kronecker(2,n) is divisible by n. A99011