Properties of the Number 6662

Six Thousand Six Hundred Sixty-Two

Basics

Value: 6661 → 6662 → 6663

Parity: even

Prime: No

Previous Prime: 6661

Next Prime: 6673

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 3331

Divisors: 1, 2, 3331, 6662

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101000000110

Octal: 15006

Duodecimal: 3A32

Hexadecimal: 1a06

Square: 44382244

Square Root: 81.62107570964744

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

Numbers k such that (16·10^k - 31)/3 is prime. A270929

Beastly (or hateful) numbers: numbers containing the string 666 in their decimal expansion. A51003

Number of compositions of n in which the minimal multiplicity of parts equals 1. A244164

Sum of reciprocals of digits = 1. A37268

Numbers in which 6 outnumbers all other digits together. A292736

Numbers n with digits 2 and 6 only. A284632

Number of 3-dimensional polyominoes (or polycubes) with n cells and trivial rotational symmetry group. A66453

a(n+1)-+a(n)=prime, a(n+1)*a(n)=Average of twin prime pairs, a(1)=2,a(2)=9. A154495

Decimal concatenations of the quadruples (d1,d2,d3,d4) with elements in {2,4,6} for which there exists a prime p >= 5 such that the differences between the 5 consecutive primes starting with p are (d1,d2,d3,d4). A78868

Magic sums of 4 X 4 magic squares composed of triangular numbers. A271579