Properties of the Number 55906

Fifty-Five Thousand Nine Hundred Six

Basics

Value: 55905 → 55906 → 55907

Parity: even

Prime: No

Previous Prime: 55903

Next Prime: 55921

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 27953

Divisors: 1, 2, 27953, 55906

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101101001100010

Octal: 155142

Duodecimal: 2842A

Hexadecimal: da62

Square: 3125480836

Square Root: 236.4444966583067

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

a(n) = 81·n² - 118·n + 43. A156677

The limiting sequence [A259095(r(r+1)/2-s,r), s=0,1,2,...,r-1] for very large r. A5576

Number of steps to reach 1 in '3x+1' (or Collatz) problem starting with the n-th Mersenne prime. A181777

Square root of n has the same nonzero digit in each of the first 4 places to the right of the decimal point. A73585

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (1, -1, 1), (1, 0, -1), (1, 1, 0)}. A149384

Numbers k such that 4·10^k + 21 is prime. A276047

Column 0 of triangle A055905. A55906