Properties of the Number 41685

Forty-One Thousand Six Hundred Eighty-Five

Basics

Value: 41684 → 41685 → 41686

Parity: odd

Prime: No

Previous Prime: 41681

Next Prime: 41687

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 397

Divisors: 1, 3, 5, 7, 15, 21, 35, 105, 397, 1191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1010001011010101

Octal: 121325

Duodecimal: 20159

Hexadecimal: a2d5

Square: 1737639225

Square Root: 204.16904760516468

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

q-factorial numbers 3!_q. A69778

Numbers k such that 4·k-1, 8·k-1, 16·k-1 and 32·k-1 are all primes. A101794

Coefficient triangle of the denominators of the (n-th convergents to) the continued fraction 1/(w+2/(w+3/(w+4/... . Conjectured to equal unsigned version of A137286. A180048

Minimum sum of a nonnegative integer triple that takes n moves to reach a 0 component, where a move picks two components, subtracts the smaller from the larger, and doubles the smaller. A256001

Numbers that can be written as the sum of four or more consecutive squares in more than one way. A307937

Numbers k such that A000081(k) is divisible by k. A336039

Numbers equidistant from twin prime pairs that are also equidistant from numbers equidistant from twin prime pairs. A260517

a(n) = m is the least m = b·c > a(n-1) such that (b+c)*n = m-1 where 1 < b <= c < m. A364171

a(1) = 7; a(n+1) = a(n)-th nonprime, where nonprimes begin at 1. A25006

Engel expansion of ζ(8)=sum(i>0,1/i⁸). A67916