Properties of the Number -13623

Thirteen Thousand Six Hundred Twenty-Three

Basics

Value: -13624 → -13623 → -13622

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 19 × 239

Divisors: 1, 3, 19, 57, 239, 717, 4541, 13623

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11010100110111

Octal: -32467

Duodecimal: -7A73

Hexadecimal: -3537

Square: 185586129

Square Root: 116.71760792613941

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, read by rows, equal to the matrix inverse of P=A113370. A114156

Triangle, read by rows, given by the product Q^-2·P³ using triangular matrices P=A113370, Q=A113381. A114155

Column 0 of triangle A114156, which is the matrix inverse of A113370. A114157

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 3. A255801

Odd interprimes divisible by 19. A126231

Numbers which are the sum of 3 cubes of distinct odd primes. A138853

Bihappy numbers: numbers that reach 1 under iteration of the sum-of-squares-of-two-digits map s₂. A257795

Number of solutions to x² + y² + z² + w² <= n², where x, y, z, w are positive odd integers. A349611

G.f. A(x) satisfies A(x) = 1 + x / (1 - x·A(x²)). A218032

Numbers n such that 137·2ⁿ + 1 is a prime. A32418