Properties of the Number 47154

Forty-Seven Thousand One Hundred Fifty-Four

Basics

Value: 47153 → 47154 → 47155

Parity: even

Prime: No

Previous Prime: 47149

Next Prime: 47161

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 29 × 271

Divisors: 1, 2, 3, 6, 29, 58, 87, 174, 271, 542

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100000110010

Octal: 134062

Duodecimal: 23356

Hexadecimal: b832

Square: 2223499716

Square Root: 217.14971793672677

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

Place n equally spaced points on each side of an equilateral triangle, and join each of these points by a chord to the 2·n new points on the other two sides: sequence gives number of interior vertices in the resulting planar graph. A366484

a(n) = ∑_d∣n (n/d)^n/d * binomial(d+n-2,n-1). A343567

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 internal vertices in the resulting planar graph. A367303

T(n,n-2), array T as in A047150. A47154