Properties of the Number 87291

Eighty-Seven Thousand Two Hundred Ninety-One

Basics

Value: 87290 → 87291 → 87292

Parity: odd

Prime: No

Previous Prime: 87281

Next Prime: 87293

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 53 × 61

Divisors: 1, 3, 9, 27, 53, 61, 159, 183, 477, 549

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010011111011

Octal: 252373

Duodecimal: 42623

Hexadecimal: 154fb

Square: 7619718681

Square Root: 295.4505034688552

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 T(n,k) of linear chord diagrams having n chords and minimal chord length k (or k=0 if n=0); triangle T(n,k), n>=0, 0<=k<=n, read by rows. A293881

Zeroless numbers n whose digit product squared is equal to the digit product of n². A256115

Number of linear chord diagrams having n chords and minimal chord length one. A293914

Odd numbers n such that q(n)² = q(n²) ≠ 0, where q(n) is the digit product on base 10. A278316

Addends k > 0 such that the polynomial x² + x + k produces a record of its Hardy-Littlewood Constant. A331940

Number of pairs of polynomials (f,g) in GF(2)[x] satisfying 1 <= deg(f) <= n, 1 <= deg(g) <= n and gcd(f,g) = 1. A87291