Properties of the Number 11881

Eleven Thousand Eight Hundred Eighty-One

Basics

Value: 11880 → 11881 → 11882

Parity: odd

Prime: No

Previous Prime: 11867

Next Prime: 11887

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 109 ²

Divisors: 1, 109, 11881

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111001101001

Octal: 27151

Duodecimal: 6A61

Hexadecimal: 2e69

Square: 141158161

Square Root: 109

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

Squares of primes. A1248

Prime powers p^e where p is a prime and e >= 2 (prime powers without the primes or 1). A246547

Centered 12-gonal numbers, or centered dodecagonal numbers: numbers of the form 6·k*(k-1) + 1. A3154

Numbers of the form p^e where both p and e are prime numbers. A53810

a(n) = (3·n+1)². A16778

a(n) = (6·n + 1)². A16922

a(n) = (4·n + 1)². A16814

Prime powers with even nonnegative exponents. A56798

Numbers m² for which the center part (containing the diagonal) of its symmetric representation of σ, SRS(m²), has width 1 and area m. A377654

Perfect squares which are not the difference of two primes. A106564