Properties of the Number 77987

Seventy-Seven Thousand Nine Hundred Eighty-Seven

Basics

Value: 77986 → 77987 → 77988

Parity: odd

Prime: No

Previous Prime: 77983

Next Prime: 77999

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 7 × 13 × 857

Divisors: 1, 7, 13, 91, 857, 5999, 11141, 77987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000010100011

Octal: 230243

Duodecimal: 3916B

Hexadecimal: 130a3

Square: 6081972169

Square Root: 279.26152617215286

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

T(n,k)=Number of (n+2)X(k+2) binary arrays with each 3X3 subblock having a positive determinant. A186063

Number of (n+2)X4 binary arrays with each 3X3 subblock having a positive determinant. A186056

Number of (n+2)X7 binary arrays with each 3X3 subblock having a positive determinant. A186059

Expansion of 1/(1+2·x-x²+2·x³). A77987