Properties of the Number 55121

Fifty-Five Thousand One Hundred Twenty-One

Basics

Value: 55120 → 55121 → 55122

Parity: odd

Prime: No

Previous Prime: 55117

Next Prime: 55127

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 11 × 5011

Divisors: 1, 11, 5011, 55121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101011101010001

Octal: 153521

Duodecimal: 27A95

Hexadecimal: d751

Square: 3038324641

Square Root: 234.77861912874434

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

Decimal numbers m such that the product of the binary string of m and the binary string of m in reverse contains the binary string of m as a substring. A342130

a(n) = 25 + floor( ∑_j=1..n-1 a(j)/2 ). A120148

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0010-1110-0111-0100 pattern in any orientation. A146908

Base-11 complement of n (write n in base 11, then replace each digit with its base-11 negative). A55121