Properties of the Number 15428

Fifteen Thousand Four Hundred Twenty-Eight

Basics

Value: 15427 → 15428 → 15429

Parity: even

Prime: No

Previous Prime: 15427

Next Prime: 15439

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 7 × 19 × 29

Divisors: 1, 2, 4, 7, 14, 19, 28, 29, 38, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11110001000100

Octal: 36104

Duodecimal: 8B18

Hexadecimal: 3c44

Square: 238023184

Square Root: 124.2095004417939

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) = n*(n+1)*(2·n+1)/3. A6331

T(n,k)=Number of nXk 0..2 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A279580

Number of anti-binary (no binary branchings) unlabeled rooted trees with n nodes. A303023

Numbers that are the sum of nine fourth powers in ten or more ways. A345594

Numbers that are the sum of nine fourth powers in exactly ten ways. A345852

Number of partitions p of n such that the number of parts having multiplicity 1 is a part and max(p) - min(p) is not a part. A241449

7-step Fibonacci sequence starting with (0,0,0,0,1,0,0). A251711

Numerators of continued fraction convergents to sqrt(463). A41882

a(n) = A000085(n) * A000110(n). A94070

Sum of the areas of the squares on the sides of the distinct rectangles that can be made with positive integer sides such that L + W = n, W < L. A294473