Properties of the Number 9426

Nine Thousand Four Hundred Twenty-Six

Basics

Value: 9425 → 9426 → 9427

Parity: even

Prime: No

Previous Prime: 9421

Next Prime: 9431

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 1571

Divisors: 1, 2, 3, 6, 1571, 3142, 4713, 9426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010011010010

Octal: 22322

Duodecimal: 5556

Hexadecimal: 24d2

Square: 88849476

Square Root: 97.08758932015976

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 T₀-tricoverings of an n-set. A60070

Array read by antidiagonals: A(n,k) is the number of T₀ n-regular set-systems on a k-set. A331039

McKay-Thompson series of class 9a for the Monster group. A58092

a(n)=sqrt(A127856(n)). A127857

Expansion of ∑_k>0 x^3·k/(1-x^k)⁴. A363607

Positive integers n such that r(n²)=r(n)², where r is the cyclic replacement map of the digits d of n in base 12, that is, d->d+1 if d<11 and d->0 if d=11. A127858

Numbers n such that primorial(n)/2 + 16 is prime. A139443

Number of subsets of {1..n} containing n such that no element is a sum of distinct other elements. A variation of non-binary sum-free subsets without re-usable elements. A365071

Expansion of ∑_k>0 x^3·k/(1+x^k)⁴. A363617

Numbers k such that k·2^k - (k-1) is prime. A46847