Properties of the Number 48031

Forty-Eight Thousand Thirty-One

Basics

Value: 48030 → 48031 → 48032

Parity: odd

Prime: No

Previous Prime: 48029

Next Prime: 48049

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 43 × 1117

Divisors: 1, 43, 1117, 48031

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101110011111

Octal: 135637

Duodecimal: 23967

Hexadecimal: bb9f

Square: 2306976961

Square Root: 219.1597590799917

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

Triangle read by rows, S₄(n, k) where S_m(n, k) are the Stirling-Frobenius subset numbers of order m; n >= 0, k >= 0. A225469

a(0) = 16, after which, if (2·a(n-1)) - 1 = ∏_{k >= 1} (p_k)^c_k then a(n) = ∏_{k >= 1} (p_k-1)^c_k, where p_k indicates the k-th prime, A000040(k). A246345

Expansion of 1/((1-3·x)*(1-7·x)*(1-11·x)). A18054

E.g.f.: exp(arctan(arctan(x))) = 1+x+1/2!*x²-3/3!*x³-15/4!*x⁴+49/5!*x⁵... A12203

Coefficient of·in the reduction of n-th polynomial at A157751 by x²->x+2. A192339

cosh(arctan(arctan(x)))=1+1/2!*x²-15/4!*x⁴+609/6!*x⁶-48031/8!*x⁸... A12210

Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n-3)/3. A48031