Properties of the Number 74481

Seventy-Four Thousand Four Hundred Eighty-One

Basics

Value: 74480 → 74481 → 74482

Parity: odd

Prime: No

Previous Prime: 74471

Next Prime: 74489

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 37 × 61

Divisors: 1, 3, 11, 33, 37, 61, 111, 183, 407, 671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010001011110001

Octal: 221361

Duodecimal: 37129

Hexadecimal: 122f1

Square: 5547419361

Square Root: 272.91207375270153

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

4-dimensional analog of centered polygonal numbers. Also number of regions created by sides and diagonals of a convex n-gon in general position. A6522

Number of regions in a polygon whose boundary consists of n+2 equally spaced points around the arc of a semicircle. See Comments for precise definition. A333643

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero. A303719

Triangle T(p,k) read by rows, where p runs through the primes and 1 <= k <= p-1. T(p,k) = 1 if the reverse of the base-k expansion of p is a prime, otherwise 0. A74481