Properties of the Number -1606

Six Hundred Six

Basics

Value: -1607 → -1606 → -1605

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 73

Divisors: 1, 2, 11, 22, 73, 146, 803, 1606

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11001000110

Octal: -3106

Duodecimal: -B1A

Hexadecimal: -646

Square: 2579236

Square Root: 40.07492981902776

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

Expansion of φ(-x)² * f(-x)⁶ + 32·x * ψ(-x)² * f(-x⁴)⁶ in powers of·where φ(), ψ(), f() are Ramanujan θ functions. A215601

Triangle T(n, k) read by rows: row n gives the coefficients of the row polynomials of the (n+1)-th diagonal sequence of the Sheffer triangle A094816 (special Poisson-Charlier). A290311

Triangle of numerators of dual coefficients of Faulhaber. A201453

Numbers k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811

Numbers that are the sum of 6 positive 5th powers. A3351

Expansion of (1+x)/(1-x-4·x²). A26597

Number of strongly connected digraphs with n labeled nodes. A3030

Number of partitions of n containing no part i of multiplicity i. A276429

Generalized Catalan numbers C(3; n). A64063

Triangle composed of generalized Catalan numbers. A64094