Properties of the Number 11121

Eleven Thousand One Hundred Twenty-One

Basics

Value: 11120 → 11121 → 11122

Parity: odd

Prime: No

Previous Prime: 11119

Next Prime: 11131

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 337

Divisors: 1, 3, 11, 33, 337, 1011, 3707, 11121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101101110001

Octal: 25561

Duodecimal: 6529

Hexadecimal: 2b71

Square: 123676641

Square Root: 105.45615202537972

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

a(n) is the decimal concatenation of n and n². A53061

Numbers whose product of digits is prime. A28842

List of codewords in binary lexicode with Hamming distance 5 written as decimal numbers. A75931

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

Sum of the products of the primes taken 2 at a time from the first n primes. A24447

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

Lexicographically earliest increasing sequence which lists the positions of the zero digits in the sequence. A167519

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

23-gonal numbers: a(n) = n(21n-19)/2. A51875