Properties of the Number 80087

Eighty Thousand Eighty-Seven

Basics

Value: 80086 → 80087 → 80088

Parity: odd

Prime: No

Previous Prime: 80077

Next Prime: 80107

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 17 × 673

Divisors: 1, 7, 17, 119, 673, 4711, 11441, 80087

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011100011010111

Octal: 234327

Duodecimal: 3A41B

Hexadecimal: 138d7

Square: 6413927569

Square Root: 282.9964664090349

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. A(x) satisfies A(x) = 1 + x / ((1+x)^5/2*A(x)^3/2). A366498

Number of binary strings of length n with no substrings equal to 0000 or 0011. A164388

Number of sequences of n coin flips that win on the last flip, if the sequence of flips ends with (0,0,1,1). A199925

Expansion of -x²*(50·x+1)/(160264·x³+80136·x²-49·x-1). A133379

Triangle of Stirling numbers of first kind, s(n,k), n >= 0, 0 <= k <= n. A48994

Number of factors of 5 in the factorial of the n-th prime, counted with multiplicity. A80087

Number of nX4 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero. A304054

Number of proper 3-colorings of the generalized chorded cycle graph C_n⁽³⁾. A383733