Properties of the Number 41640

Forty-One Thousand Six Hundred Forty

Basics

Value: 41639 → 41640 → 41641

Parity: even

Prime: No

Previous Prime: 41627

Next Prime: 41641

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 347

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010001010101000

Octal: 121250

Duodecimal: 20120

Hexadecimal: a2a8

Square: 1733889600

Square Root: 204.05881505095536

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

McKay-Thompson series of class 8C for Monster. A52241

Expansion of (χ(q)⁵ * χ(-q))² in powers of q where χ() is a Ramanujan θ function. A143894

Consider the triangle in which the j-th row begins with prime(j) and is the arithmetic progression with least common difference such that the remaining j-1 terms are composite and not divisible by prime(j). Sequence gives last term in each row. A95182

a(n) = 289n² + 2n. A158254

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 17. A31695

G.f. A(x) satisfies: [xⁿ] A(x)ⁿ⁺¹ = [xⁿ] (1 + x·A(x)^2·n)ⁿ⁺¹ for n >= 0. A360344

Numerators of continued fraction convergents to sqrt(339). A41640

Positive values of n such that A000071(n+2) is divisible by A000217(n). A263161