Properties of the Number 85087

Eighty-Five Thousand Eighty-Seven

Basics

Value: 85086 → 85087 → 85088

Parity: odd

Prime: Yes

Previous Prime: 85081

Next Prime: 85091

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 85087

Divisors: 1, 85087

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110001011111

Octal: 246137

Duodecimal: 412A7

Hexadecimal: 14c5f

Square: 7239797569

Square Root: 291.6967603522535

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

Extended Motzkin numbers, ∑_k>=0 C(n,k)*C(k), where C(k) is the extended Catalan number A057977(k). A189912

Number of 7-almost primes 7ap such that 2ⁿ < 7ap <= 2ⁿ⁺¹. A120038

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 4,4,0,2,1 for x=0,1,2,3,4. A197307

Number of nX4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,4,0,2,1 for x=0,1,2,3,4. A197303

Number of nX7 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,4,0,2,1 for x=0,1,2,3,4. A197306

Primes such that every distinct permutation of digits is composite (including permutations with leading zeros). A39986

a(1) = 1; for n>1, a(n) = a(n-1)*n if n is prime, a(n) = a(n-1)/n if n is composite dividing a(n-1) else a(n) = a(n-1). A85087