Properties of the Number 87011

Eighty-Seven Thousand Eleven

Basics

Value: 87010 → 87011 → 87012

Parity: odd

Prime: Yes

Previous Prime: 86993

Next Prime: 87013

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 87011

Divisors: 1, 87011

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001111100011

Octal: 251743

Duodecimal: 4242B

Hexadecimal: 153e3

Square: 7570914121

Square Root: 294.9762702320307

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 ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 7 sites wide. A58366

Lesser of twin primes for which φ(p-1) < φ(p+1). A286715

a(n) = (3·9ⁿ - 5ⁿ)/2. A165149

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251947

Primes which yield again a prime when the digits are taken according to the lexicographically first superpermutation of corresponding order and of minimal length. A332088

Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251942

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251950

Number of primes of form 4·k+3 between n and 2n (inclusive). A87011