Properties of the Number 45380

Forty-Five Thousand Three Hundred Eighty

Basics

Value: 45379 → 45380 → 45381

Parity: even

Prime: No

Previous Prime: 45377

Next Prime: 45389

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 2269

Divisors: 1, 2, 4, 5, 10, 20, 2269, 4538, 9076, 11345

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011000101000100

Octal: 130504

Duodecimal: 22318

Hexadecimal: b144

Square: 2059344400

Square Root: 213.02582003128165

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) = floor(n*φ²⁰), where φ is the golden ratio, A001622. A4935

Numbers that have 11 terms in their Zeckendorf representation. A179251

Numbers k such that (k / sum of digits of k) and (k+1 / sum of digits of k+1) are both prime. A85775

The sum of the numbers inside the squares of incrementing size n·n when the square spiral is tiled with these squares, where each tile contains numbers which sum to the minimum possible value, and each number on the spiral can only be in one tile. A341160

a(0)=1. a(n) = a(n-1)*(n+1), if n is in the sequence. a(n)= a(n-1) +1, if n is missing from the sequence. A118471

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 169", based on the 5-celled von Neumann neighborhood. A270462

Primes congruent to 2 mod 5. A45380