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Properties of the Number 10638

Ten Thousand Six Hundred Thirty-Eight

Basics

Value: 10637 → 10638 → 10639

Parity: even

Prime: No

Previous Prime: 10631

Next Prime: 10639

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 3 × 197

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 197, 394

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10100110001110

Octal: 24616

Duodecimal: 61A6

Hexadecimal: 298e

Square: 113167044

Square Root: 103.14068062602651

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

Numbers n such that the Reverse and Add! trajectory of n (presumably) does not reach a palindrome and does not join the trajectory of any term m < n. A63048
Numbers k such that the Reverse and Add! trajectory of k (presumably) does not reach a palindrome (with the exception of k itself) and does not join the trajectory of any term m < k. A88753
Numbers congruent to 2,3,6,11 mod 12 missing from A042944 (conjectured to be finite). A42945
The number of regions inside a Reuleaux triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. A340639
Number of essentially series unoriented series-parallel networks with n elements. A339223
Matrix inverse of triangle A055363(n+2,k). A55370
Number of partitions of n into 5-smooth parts. A112581
G.f. A(x) satisfies A(x) = 1 + ∑n>=1 A(x)n * 2·xn/(1 - 2·x2·n). A192403
a(n) = n XOR n3. A261807
(1/9) times the sum of the elements of all subsets of [n] whose sum is divisible by nine. A309301