Properties of the Number 41866

Forty-One Thousand Eight Hundred Sixty-Six

Basics

Value: 41865 → 41866 → 41867

Parity: even

Prime: No

Previous Prime: 41863

Next Prime: 41879

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 11 ² × 173

Divisors: 1, 2, 11, 22, 121, 173, 242, 346, 1903, 3806

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1010001110001010

Octal: 121612

Duodecimal: 2028A

Hexadecimal: a38a

Square: 1752761956

Square Root: 204.61182761512103

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

Number of subsets of {1,2,...,n} whose sum is semiprime (cf. A001358, A064911). A181522

Number of compositions (ordered partitions) of n into at least 2 distinct positive parts. A216695

a(n) is the constant term in expansion of ∏_k=1..n (x^k² + 1/x^k²)². A350495

Numbers N such that N + the sum of the cubes of its digits is again a third power. A362953

a(n) = n*((2·n + 1)*(2·n² + 2·n + 3) - 3*(-1)ⁿ)/24. A325517

Numbers n such that (n + prime(n)), (n+1 + prime(n+1)), (n+2 + prime(n+2)) and (n+3 + prime(n+3)) are divisible by 5. A107582

Number of nX4 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2. A274891

T(n,k)=Number of nXk 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2. A274895

Numerators of continued fraction convergents to sqrt(455). A41866