Properties of the Number 87222

Eighty-Seven Thousand Two Hundred Twenty-Two

Basics

Value: 87221 → 87222 → 87223

Parity: even

Prime: No

Previous Prime: 87221

Next Prime: 87223

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 14537

Divisors: 1, 2, 3, 6, 14537, 29074, 43611, 87222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010010110110

Octal: 252266

Duodecimal: 42586

Hexadecimal: 154b6

Square: 7607677284

Square Root: 295.33370955581756

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

Numbers k for which A064380(k) = k/2. A185078

Numbers k such that iphi(k) divides k, where iphi is the infinitary Euler φ function (A064380). A373057

Elements of A103741 that do not terminate in a zero digit. A103764

G.f. A(x) satisfies the condition that both G(x) = A(x/G(x)) and H(x) = A(x·H(x)) have zeros for every other coefficient after initial terms; g.f. of dual sequence A157306 satisfies the same condition. A157303

G.f. satisfies A(x) = 1 + x·A(x)*f(x)³, where f(x) = ∑_k>=0 x^{(4^k-1}/3). A87222