Properties of the Number 40630

Forty Thousand Six Hundred Thirty

Basics

Value: 40629 → 40630 → 40631

Parity: even

Prime: No

Previous Prime: 40627

Next Prime: 40637

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 17 × 239

Divisors: 1, 2, 5, 10, 17, 34, 85, 170, 239, 478

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001111010110110

Octal: 117266

Duodecimal: 1B61A

Hexadecimal: 9eb6

Square: 1650796900

Square Root: 201.56884679930081

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

a(n) = ∑_k=1..n φ(gcd(k, n))^{n/gcd(k, n}). A342541

Number of Sidon subsets of {1,...,n} of size 4. A241688

The number of partitions of n which represent Chomp positions with Sprague-Grundy value 10. A284784

Number of polycubes with 8·n cells, full symmetry, and the rotation point of the symmetries at the common corner of 8 cells (that may or may not be part of the polycube). A377335

One eighty-fourth the area of primitive Pythagorean triangles with (increasing) square hypotenuses (precisely those of A008846). A72289

Number of Motzkin excursions of length n with an even number of humps and without peaks. A325918

T(n,k)=Half the number of nXk binary arrays with no element unequal to a strict majority of its king-move neighbors. A183391

Continued fraction for sqrt(656). A40630