Properties of the Number 87881

Eighty-Seven Thousand Eight Hundred Eighty-One

Basics

Value: 87880 → 87881 → 87882

Parity: odd

Prime: Yes

Previous Prime: 87877

Next Prime: 87887

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 87881

Divisors: 1, 87881

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011101001001

Octal: 253511

Duodecimal: 42A35

Hexadecimal: 15749

Square: 7723070161

Square Root: 296.4472971710149

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

Sixth term of strong prime sextets: p(m-4)-p(m-5) > p(m-3)-p(m-4) > p(m-2)-p(m-3) > p(m-1)-p(m-2) > p(m)-p(m-1). A54818

Denominators of continued fraction convergents to sqrt(57). A41099

Number of partitions of [n] whose non-singleton elements sum to n. A370946

a(n) is the number of zeros needed to write the integers 1 through Fibonacci(n). A155881

Primes of the form 5n³+1. A201171

Smallest prime (p) of six consecutive primes (p,q,r,u,v,w) for which the conic section discriminant (δ) is a perfect square. A327592

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (-1, 0, -1), (1, -1, -1), (1, 1, 1)}. A149497

Hypotenuses of primitive Pythagorean triangles. A8846

a(n) = Prime[Prime[n-1]] + PrimePi[Abs[n - PrimePi[n-1]]]. A87881