Properties of the Number 1566

One Thousand Five Hundred Sixty-Six

Basics

Value: 1565 → 1566 → 1567

Parity: even

Prime: No

Previous Prime: 1559

Next Prime: 1567

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 29

Divisors: 1, 2, 3, 6, 9, 18, 27, 29, 54, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011110

Octal: 3036

Duodecimal: AA6

Hexadecimal: 61e

Square: 2452356

Square Root: 39.57271787481876

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

Coordination sequence for "reo" 3D uniform tiling. A299279

a(n) = 2·n² - 2. A54000

Numbers k such that k⁶⁴ + 1 is prime. A6316

Coordination sequence for (3,5,5) tiling of hyperbolic plane. A265076

Numbers with one fewer divisors than the sum of their prime indices. A325694

Number of regions that the line segments in A091908(n) cut the equilateral triangle into. A92098

Numbers whose multiset of prime factors is separable but has no alternating permutation. A345173

Number of inversion sequences of length n avoiding the consecutive patterns 012, 021, 010, 120. A328358

Numbers where 6 outnumbers any other digit. A292456

Numbers k such that k+1 and k²+1 are primes. A70689