Properties of the Number 6487

Six Thousand Four Hundred Eighty-Seven

Basics

Value: 6486 → 6487 → 6488

Parity: odd

Prime: No

Previous Prime: 6481

Next Prime: 6491

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 13 × 499

Divisors: 1, 13, 499, 6487

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1100101010111

Octal: 14527

Duodecimal: 3907

Hexadecimal: 1957

Square: 42081169

Square Root: 80.54191455385202

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

Hex (or centered hexagonal) numbers: 3·n*(n+1)+1 (crystal ball sequence for hexagonal lattice). A3215

Number of partitions of n in which no part occurs just once. A7690

Where records occur in A079366. A79368

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

Numbers which yield a prime whenever a 1 is inserted anywhere in them (including at the beginning or end). A68679

a(n) = 4ⁿ mod 3ⁿ. A64629

Semiprimes in A003215. A113530

Expansion of (1+4x+7x²)/((1-x)²*(1-x²)). A90381

First differences of A006899. A108906

Discriminants of imaginary quadratic fields with class number 42 (negated). A351680