Properties of the Number 87475

Eighty-Seven Thousand Four Hundred Seventy-Five

Basics

Value: 87474 → 87475 → 87476

Parity: odd

Prime: No

Previous Prime: 87473

Next Prime: 87481

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 3499

Divisors: 1, 5, 25, 3499, 17495, 87475

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010110110011

Octal: 252663

Duodecimal: 42757

Hexadecimal: 155b3

Square: 7651875625

Square Root: 295.76172842340503

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 n such that φ(n-1) + φ(n+1) = φ(2n). A67701

a(n) = n² + 4. A87475

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n·k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of vertices in the resulting planar graph. A367302