Properties of the Number 77860

Seventy-Seven Thousand Eight Hundred Sixty

Basics

Value: 77859 → 77860 → 77861

Parity: even

Prime: No

Previous Prime: 77849

Next Prime: 77863

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 17 × 229

Divisors: 1, 2, 4, 5, 10, 17, 20, 34, 68, 85

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011000000100100

Octal: 230044

Duodecimal: 39084

Hexadecimal: 13024

Square: 6062179600

Square Root: 279.03404810166086

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

G.f. = b(2)²*b(6)/(x⁷+x⁶-x⁵-x²-x+1), where b(k) = (1-x^k)/(1-x). A266335

Number of 6-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187301

Expansion of 1/((1 - 2·x + 2·x²)*(1-x)). A77860

Number of 5Xn 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors. A208396

Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A317032