Properties of the Number 28017

Twenty-Eight Thousand Seventeen

Basics

Value: 28016 → 28017 → 28018

Parity: odd

Prime: No

Previous Prime: 28001

Next Prime: 28019

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 × 283

Divisors: 1, 3, 9, 11, 33, 99, 283, 849, 2547, 3113

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110101110001

Octal: 66561

Duodecimal: 14269

Hexadecimal: 6d71

Square: 784952289

Square Root: 167.38279481475985

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

Stirling-like number triangle defined by the sequence A000292=C(n+3,3). A80249

Numerators of continued fraction convergents to sqrt(628). A42204

Triangle read by rows: T(n,k) = ∑_i=k..n C(i-1,i-k)*C(i,k). A382225

Numbers k such that 187·2^k-1 is prime. A50845

Value of p² + (p-1)²/2 as p runs through A001359 (the lesser of twin primes). A372069

Irregular triangle where row n lists the counts of types k for which the number of partitions of n into an even number of distinct parts equals the number of partitions of n into an odd number of distinct parts, assuming k types of each part. Each row starts with zero. A390313

Expansion of 1/((1-2x)(1-8x)(1-9x)(1-12x)). A28017