Properties of the Number 13423

Thirteen Thousand Four Hundred Twenty-Three

Basics

Value: 13422 → 13423 → 13424

Parity: odd

Prime: No

Previous Prime: 13421

Next Prime: 13441

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 31 × 433

Divisors: 1, 31, 433, 13423

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11010001101111

Octal: 32157

Duodecimal: 7927

Hexadecimal: 346f

Square: 180176929

Square Root: 115.8576713040617

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

Denominators of continued fraction convergents to sqrt(173). A41319

a(n) = n*(14·n - 1). A195024

Monotonic ordering of nonnegative differences 2ⁱ-7^j, for 40>=i>=0, j>=0. A192118

Lesser of 2 successive squarefree semiprimes (k, k+4) sandwiching 3 consecutive nonsquarefree numbers. A363821

Expansion of 1/( (1 + x)² * (1 - x²*(1 + x)³) ). A375365

First differences of A003591. A165742

Number of strings of numbers x(i=1..n) in 0..2 with sum i·x(i)² equal to n·4. A184434

Number of practical numbers between powers of 2 where the practical numbers are A005153. A214932

Semiprimes k=p·q such that the polynomial (1+x)^k (mod k) has p+q nonzero terms. A116926

Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-0111-0100 pattern in any orientation. A146464