Properties of the Number 87771

Eighty-Seven Thousand Seven Hundred Seventy-One

Basics

Value: 87770 → 87771 → 87772

Parity: odd

Prime: No

Previous Prime: 87767

Next Prime: 87793

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 1721

Divisors: 1, 3, 17, 51, 1721, 5163, 29257, 87771

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011011011011

Octal: 253333

Duodecimal: 42963

Hexadecimal: 156db

Square: 7703748441

Square Root: 296.26170862938056

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

Number of walks within N² (the first quadrant of Z²) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 1), (0, -1), (0, 1), (1, 0)}. A151412

Numbers k such that k![4] - 128 is prime, where k![4] = A007662(k) = quadruple factorial. A329176

Primes p giving prime quadruples (30p+11, 30p+13, 30p+17, 30p+19). A87771

Indices of primes in sequence defined by A(0) = 81, A(n) = 10·A(n-1) + 61 for n > 0. A101076

Numbers k such that 8·10^k + 7·R_k - 6 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A103089