Properties of the Number 40621

Forty Thousand Six Hundred Twenty-One

Basics

Value: 40620 → 40621 → 40622

Parity: odd

Prime: No

Previous Prime: 40609

Next Prime: 40627

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 7 ² × 829

Divisors: 1, 7, 49, 829, 5803, 40621

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111010101101

Octal: 117255

Duodecimal: 1B611

Hexadecimal: 9ead

Square: 1650065641

Square Root: 201.54652068443156

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

E.g.f. A(x) satisfies: A(x) = exp(x) * A(x²)²*A(x³)³*A(x⁴)⁴* ... *A(x^k)^k* ... A307615

Number of length 3+2 0..n arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero. A250322

Number of partitions of n into at most 6 parts. A1402

Number of partitions of n in which the greatest part is 6. A26812

Number of tilings of a 5 X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles. A219969

Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254261

Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically. A254300

Continued fraction for sqrt(647). A40621