Properties of the Number 38817

Thirty-Eight Thousand Eight Hundred Seventeen

Basics

Value: 38816 → 38817 → 38818

Parity: odd

Prime: No

Previous Prime: 38803

Next Prime: 38821

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 19 × 227

Divisors: 1, 3, 9, 19, 57, 171, 227, 681, 2043, 4313

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001011110100001

Octal: 113641

Duodecimal: 1A569

Hexadecimal: 97a1

Square: 1506759489

Square Root: 197.02030352225123

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

Numbers k such that σ(reverse(k)) = σ(reverse(k-1)) + σ(reverse(k-2)). A69970

Numbers k such that φ(x) = 12·k+2 is solvable, where φ is Euler's totient A000010. A289364

Sum of the areas of the distinct rectangles (and the areas of the squares on their sides) with positive integer sides such that L + W = n, W < L. A294139

Number of primes less than n·10⁸. A38817

Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from the 3 vertices and the equally spaced 3·n points placed on the sides of an equilateral triangle, using only a compass. A372617

Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically. A208038