Properties of the Number 40661

Forty Thousand Six Hundred Sixty-One

Basics

Value: 40660 → 40661 → 40662

Parity: odd

Prime: No

Previous Prime: 40639

Next Prime: 40693

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 73 × 557

Divisors: 1, 73, 557, 40661

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111011010101

Octal: 117325

Duodecimal: 1B645

Hexadecimal: 9ed5

Square: 1653316921

Square Root: 201.64572894063488

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

Expansion of ∏_k>=0 (1-x^3·k+1)^3·k+1. A285050

Row sums of the triangle described in A082200. A82203

Sum of squares of five consecutive primes. A131686

Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are > p/2. A282722

Continued fraction for sqrt(688). A40661