Properties of the Number 15248

Fifteen Thousand Two Hundred Forty-Eight

Basics

Value: 15247 → 15248 → 15249

Parity: even

Prime: No

Previous Prime: 15241

Next Prime: 15259

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 953

Divisors: 1, 2, 4, 8, 16, 953, 1906, 3812, 7624, 15248

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101110010000

Octal: 35620

Duodecimal: 89A8

Hexadecimal: 3b90

Square: 232501504

Square Root: 123.48279232346505

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. A298454

a(n) = (A(n) - A215817(n))/sqrt(7), where A(n) = (6-sqrt(7))A(n-1) - (12-4·sqrt(7))A(n-2) + (8-3·sqrt(7))A(n-3), with A(0)=3, A(1)=6-sqrt(7), and A(2)=19-4·sqrt(7). A215877

Number T(n,k) of binary search trees of height k having n internal nodes; triangle T(n,k), n>=0, max(0,floor(log₂(n))+1)<=k<=n, read by rows. A335919

Upper triangular region of the table A073345. A73429

Quadrinomial coefficients. A5719

a(n) = 27225·n² - 15248·n + 2135. A157786

Number of points on surface of truncated tetrahedron: a(n) = 14·n² + 2 for n > 0, a(0)=1. A5905

Partial sums of floor(7ⁿ/9). A178826

Records in A224796. A224719

Total number of possible standard knight moves on an n X 2n chessboard, if the knight is placed anywhere. A180319