Properties of the Number 111

One Hundred Eleven

Basics

Value: 110 → 111 → 112

Parity: odd

Prime: No

Previous Prime: 109

Next Prime: 113

Digit Sum: 3

Digital Root: 3

Palindrome: Yes

Factorization: 3 × 37

Divisors: 1, 3, 37, 111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101111

Octal: 157

Duodecimal: 93

Hexadecimal: 6f

Square: 12321

Square Root: 10.535653752852738

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

Coordination sequence for planar net 3.3.3.3.6 (also called the fsz net). A250120

Squarefree numbers: numbers that are not divisible by a square greater than 1. A5117

Semiprimes (or biprimes): products of two primes. A1358

The odd numbers: a(n) = 2·n + 1. A5408

Repunits: (10ⁿ - 1)/9. Often denoted by R_n. A2275

Completely multiplicative with a(prime(k)) = prime(k+1). A3961

Palindromes in base 10. A2113

The binary numbers (or binary words, or binary vectors, or binary expansion of n): numbers written in base 2. A7088

Squarefree semiprimes: Numbers that are the product of two distinct primes. A6881

EKG sequence (or ECG sequence): a(1) = 1; a(2) = 2; for n > 2, a(n) = smallest number not already used which shares a factor with a(n-1). A64413

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