Properties of the Number 9438

Nine Thousand Four Hundred Thirty-Eight

Basics

Value: 9437 → 9438 → 9439

Parity: even

Prime: No

Previous Prime: 9437

Next Prime: 9439

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 11 ² × 13

Divisors: 1, 2, 3, 6, 11, 13, 22, 26, 33, 39

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010011011110

Octal: 22336

Duodecimal: 5566

Hexadecimal: 24de

Square: 89075844

Square Root: 97.14936952960632

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) = binomial(2·n,n) - binomial(2·n-2,n-1); or (3n-2)*C(n-1), where C = Catalan numbers (A000108). A51924

a(n) = binomial(n+7, 7)*(n+4)/4. A53347

a(n) = number of (s(0), s(1), ..., s(n)) such that s(i) is a nonnegative integer and |s(i) - s(i-1)| = 1 for i = 1,2,...,n and s(0) = 2. Also a(n) = sum of numbers in row n+1 of array T defined in A026009. A26010

a(n) = ∏_{d∣n, d>1} A000040(A297113(d)), where A000040(n) gives the n-th prime, and A297113(n) = the excess of n plus the index of the largest dividing prime (A046660 + A061395). A332461

a(n) = n*(14·n - 1). A195024

Array read by descending antidiagonals: A(n,k) = (1 + k·n)*C(n) where C(n) = Catalan numbers (A000108). A330965

Least positive integer k such that k and k·n are terms of A259539. A259540

Seventh column (m=6) of (1,6)-Pascal triangle A096956. A97297

Numbers k for which A276086(A003415(k)) is a multiple of k, where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function. A370114

Column of Motzkin triangle. A5323