Properties of the Number 40293

Forty Thousand Two Hundred Ninety-Three

Basics

Value: 40292 → 40293 → 40294

Parity: odd

Prime: No

Previous Prime: 40289

Next Prime: 40343

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 ² × 37

Divisors: 1, 3, 9, 11, 33, 37, 99, 111, 121, 333

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1001110101100101

Octal: 116545

Duodecimal: 1B399

Hexadecimal: 9d65

Square: 1623525849

Square Root: 200.73116349984124

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

Trajectory of 9 under map x->x + (x-with-digits-reversed). A33651

Numbers k for which the quotient q(k)=(k+rev(k))/abs(k-rev(k)) is an integer. A87993

Numbers n such that (10ⁿ-1)²-2 is prime. A100903

Expansion of ∏_k>=0 1/(1-x^4·k+1)³. A261632

Numbers k such that (k*(k+1)*(k+2)) / (k+(k+1)+(k+2)) is a palindrome. A32789

Number of permutations of 1..n with displacements restricted to {-7,-6,-5,-4,-3,0,1,2}. A189602

a(n) = ∑_d∣n (-1)^n/d+1*d!. A321521

Number of ways to partition n elements into pie slices of different sizes other than one. A32155

Trajectory of 27 under map x->x + (x-with-digits-reversed). A33659

Expansion of 1 / (1 - x - x² + x³ - x⁵ + x¹⁵ - x¹⁷ - x¹⁸ + x¹⁹ + x²⁰). A174650