Properties of the Number 66778

Sixty-Six Thousand Seven Hundred Seventy-Eight

Basics

Value: 66777 → 66778 → 66779

Parity: even

Prime: No

Previous Prime: 66763

Next Prime: 66791

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 173 × 193

Divisors: 1, 2, 173, 193, 346, 386, 33389, 66778

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010011011010

Octal: 202332

Duodecimal: 3278A

Hexadecimal: 104da

Square: 4459301284

Square Root: 258.4143958838207

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

Consecutive states of the linear congruential pseudo-random number generator (741·s + 66037) mod 312500 when started at s=1. A385358

Partial sums of the Fermat pseudoprimes to base 2, A001567. A172255

a(n) = ∑_i=1..n floor((3/2)ⁱ). A66778

Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically. A207708

Number of n X 4 0..1 arrays with no 1 equal to more than two of its king-move neighbors, with the exception of exactly one element. A282556