Properties of the Number 72481

Seventy-Two Thousand Four Hundred Eighty-One

Basics

Value: 72480 → 72481 → 72482

Parity: odd

Prime: Yes

Previous Prime: 72469

Next Prime: 72493

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 72481

Divisors: 1, 72481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101100100001

Octal: 215441

Duodecimal: 35B41

Hexadecimal: 11b21

Square: 5253495361

Square Root: 269.2229559305818

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

Beginning with 3, least member of A007500 such that concatenation of first n terms and its digit reversal both are primes. A111383

Half-quartan primes: primes of the form p = (x⁴ + y⁴)/2. A2646

Conjectured record minima of the positive distance d between the square of an integer y and the fifth power of a positive integer·such that d = y² - x⁵ (x <> k² and y <> k⁵). A198443

Primes of the form 2·n²+30·n+13. A243889

Primes of the form 20n²+8n+1. A154405

a(n) = ∑_k=1..n ∑_d=1..k (k mod d). A72481

Super pseudoprimes to both bases 2 and 3 (A333130) with more than two prime factors (counted with multiplicity). A333131