Properties of the Number 18271

Eighteen Thousand Two Hundred Seventy-One

Basics

Value: 18270 → 18271 → 18272

Parity: odd

Prime: No

Previous Prime: 18269

Next Prime: 18287

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 11 ² × 151

Divisors: 1, 11, 121, 151, 1661, 18271

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011101011111

Octal: 43537

Duodecimal: A6A7

Hexadecimal: 475f

Square: 333829441

Square Root: 135.1702630018896

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

Number of "sets of lists" (cf. A000262) with an odd number of lists. A88313

First 5-digit number to appear n times in the decimal expansion of π. A277171

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero. A298653

Minimal number of moves for the cyclic variant of the Towers of Hanoi for 3 pegs and n disks, with the final peg one step away. A5665

Nonprime numbers with all divisors starting and ending with digit 1. A208261

Number of sets of even number of even lists, cf. A000262. A96965

Dimension of space of measures of entanglement that are homogeneous of degree 2n, for the case of four qubits. A129549

Numbers n such that n-+1 are divisible by exactly 6 primes, counted with multiplicity. A157486

Composite numbers whose prime factors contain no digits other than 1 and 5. A36305

Number of partitions of n into colored blocks of equal parts, such that all colors from a set of size nine are used and the colors are introduced in increasing order. A327292