Properties of the Number 45905

Forty-Five Thousand Nine Hundred Five

Basics

Value: 45904 → 45905 → 45906

Parity: odd

Prime: No

Previous Prime: 45893

Next Prime: 45943

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 9181

Divisors: 1, 5, 9181, 45905

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011001101010001

Octal: 131521

Duodecimal: 22695

Hexadecimal: b351

Square: 2107269025

Square Root: 214.2545215392198

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

Triangle T(n,k) = 1 + A176304(k) + A176304(n-k) - A176304(n), read by rows. A176307

Column 3 of triangle A128545; a(n) is the coefficient of q³ⁿ⁺⁹ in the central q-binomial coefficient [2n+6,n+3]. A128553

Values of k such that {P(k), P(k+1), ..., P(k+7)} are all prime numbers, where P(k) = 4·k² - 154·k + 1523. A90110

Values of k such that {P(k), P(k+1), ..., P(k+6)} are all prime numbers, where P(k) = 4·k² - 154·k + 1523. A90111

a(0) = 1; if a(n) is even, a(n + 1) = 5a(n)/2; if a(n) is odd, a(n + 1) is 5a(n)/2 rounded to the nearest even integer. A140832

Catafusenes (see reference for precise definition). A45905

Number of nX2 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors. A231694