Properties of the Number 87423

Eighty-Seven Thousand Four Hundred Twenty-Three

Basics

Value: 87422 → 87423 → 87424

Parity: odd

Prime: No

Previous Prime: 87421

Next Prime: 87427

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 23 × 181

Divisors: 1, 3, 7, 21, 23, 69, 161, 181, 483, 543

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010101111111

Octal: 252577

Duodecimal: 42713

Hexadecimal: 1557f

Square: 7642780929

Square Root: 295.67380675332066

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

From the binary representation of n: binomial(number of ones, number of blocks of contiguous ones). A136277

a(n) = S(3·n,3)/S(n,3) where S(n,m) = ∑_k=0..n binomial(n,k)*Fibonacci(m·k). A87423