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Properties of the Number 39630

Thirty-Nine Thousand Six Hundred Thirty

Basics

Value: 39629 → 39630 → 39631

Parity: even

Prime: No

Previous Prime: 39623

Next Prime: 39631

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 1321

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 1321, 2642

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001101011001110

Octal: 115316

Duodecimal: 1AB26

Hexadecimal: 9ace

Square: 1570536900

Square Root: 199.07285098676815

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

Number of distinct values taken by 5th derivative of xx^...x (with n x's and parentheses inserted in all possible ways) at x=1. A199296
a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 3) and d(n) = (n-th non-Fibonacci number). A23487
a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 1) and d(n) = (n-th non-Lucas number). A23493
Number of different initial values for 3x+1 trajectories started with initial values not exceeding 2n and in which the peak values are larger than 2n. A95383
Expansion of ∏k >= 0 (1 + A147954(k)*xk). A147955
Number of 5X5X5 triangular 0..n arrays with every horizontal row nondecreasing, first elements of rows nonincreasing, last elements of rows nondecreasing, and every row having the same average value. A215185
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 177", based on the 5-celled von Neumann neighborhood. A270620
Convolution of A001950 with itself. A23667
T(n,k)=Number of nXnXn triangular 0..k arrays with every horizontal row nondecreasing, first elements of rows nonincreasing, last elements of rows nondecreasing, and every row having the same average value. A215182
Mono-3-catahelicenes. A39630