Properties of the Number 53405

Fifty-Three Thousand Four Hundred Five

Basics

Value: 53404 → 53405 → 53406

Parity: odd

Prime: No

Previous Prime: 53401

Next Prime: 53407

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 11 × 971

Divisors: 1, 5, 11, 55, 971, 4855, 10681, 53405

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101000010011101

Octal: 150235

Duodecimal: 26AA5

Hexadecimal: d09d

Square: 2852094025

Square Root: 231.0952184706555

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 k such that 273·2^k + 1 is prime. A53353

a(n) = ∑_{m=0..floor((n-1)/2)} prime((n-m)(n-m-1)/2+m+1). A249490

Definition: A kara B = C, where C is the least nonnegative integer such that C·B >= A and C * (B-1) < A. a(n) is the smallest k such that n kara k is undefined. A53405