Properties of the Number 42986

Forty-Two Thousand Nine Hundred Eighty-Six

Basics

Value: 42985 → 42986 → 42987

Parity: even

Prime: No

Previous Prime: 42979

Next Prime: 42989

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 21493

Divisors: 1, 2, 21493, 42986

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010011111101010

Octal: 123752

Duodecimal: 20A62

Hexadecimal: a7ea

Square: 1847796196

Square Root: 207.3306537876153

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

a(n) = 2·a(n-1) - a(n-2) + a(n-4), n>3, a(0)=0, a(1)=a(2)=1, a(3)=3. A286311

Upper (1/2)-midsequence of F(n) and F(n+4), where F = A000045 (Fibonacci numbers); see Comments. A390351

Number of binary strings of length n with no substrings equal to 0001 0100 or 0110. A164463

Number of pairs of two disjoint sets of n positive integers more than 1 with product A354697. A372849

Primes congruent to {0, 1, 2, 3} mod 5. A42986