Properties of the Number 12081

Twelve Thousand Eighty-One

Basics

Value: 12080 → 12081 → 12082

Parity: odd

Prime: No

Previous Prime: 12073

Next Prime: 12097

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 4027

Divisors: 1, 3, 4027, 12081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111100110001

Octal: 27461

Duodecimal: 6BA9

Hexadecimal: 2f31

Square: 145950561

Square Root: 109.9136024339117

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 that take a record number of steps to appear in A181391. A171863

Lower triangular array called S2hat(-1) related to partition number array A144269. A144270

A bisection of A129095: a(n) = A129095(2n-1) for n>=1. A129096

Number of partitions of n such that (number of distinct parts) >= least part. A239952

Number of binary [ n,3 ] codes. A34357

σ(n) plus the n-th prime gives a square. A114082

Pisot sequence P(5,11), a(0)=5, a(1)=11, a(n+1) is the nearest integer to a(n)²/a(n-1). A21008

Numbers whose trajectories under the map x -> A230625(x) never reach a prime. A288847

a(n) is the number of simple graphs of order n having at most one cycle (such graphs are called "at most unicyclic graphs"). A291648

Quadruples of different integers from [ 1,n ] with no global factor. A15622