Properties of the Number 11211

Eleven Thousand Two Hundred Eleven

Basics

Value: 11210 → 11211 → 11212

Parity: odd

Prime: No

Previous Prime: 11197

Next Prime: 11213

Digit Sum: 6

Digital Root: 6

Palindrome: Yes

Factorization: 3 × 37 × 101

Divisors: 1, 3, 37, 101, 111, 303, 3737, 11211

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101111001011

Octal: 25713

Duodecimal: 65A3

Hexadecimal: 2bcb

Square: 125686521

Square Root: 105.88200980336556

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 contain only 1's and 2's. Nonempty binary strings of length n in lexicographic order. A7931

Numbers whose square is a palindrome. A2778

Triangle of Gaussian binomial coefficients [ n,k ] for q = 10. A22174

a(n) = (10²ⁿ⁺¹-1)/9 + 10ⁿ. A332112

Palindromes in base 3 (written in base 3). A118594

a(n) = n*(8·n+7). A139278

List of primitive words over the alphabet {1,2}. A213969

Integers whose decimal expansion start with 1, do not contain zeros and each successive digit to the right is at most one greater than the previous digit. A71159

Palindromes in base 4 (written in base 4). A118595

Consider the Post tag system described in A284116 (but adapted to the alphabet {1,2}) ; sequence lists the words that terminate in the empty word. A289675