Properties of the Number 75531

Seventy-Five Thousand Five Hundred Thirty-One

Basics

Value: 75530 → 75531 → 75532

Parity: odd

Prime: No

Previous Prime: 75527

Next Prime: 75533

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 1481

Divisors: 1, 3, 17, 51, 1481, 4443, 25177, 75531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010011100001011

Octal: 223413

Duodecimal: 37863

Hexadecimal: 1270b

Square: 5704931961

Square Root: 274.82903776711805

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

a(n) = arrange digits of concatenation of divisors of n (A037278, A176558) in decreasing order (in base 10). A243360

Third entry in row n of triangle in A169950. A169953

Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array. A219940

G.f. A(x) satisfies: A(x)² + A(x) - 1 = ∑_n>=0 binomial(3·n,n)² * xⁿ. A322189

Number of gaps in the set of all possible values in the set X(n) given in A075529. A75531