Properties of the Number 38285

Thirty-Eight Thousand Two Hundred Eighty-Five

Basics

Value: 38284 → 38285 → 38286

Parity: odd

Prime: No

Previous Prime: 38281

Next Prime: 38287

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 13 × 19 × 31

Divisors: 1, 5, 13, 19, 31, 65, 95, 155, 247, 403

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001010110001101

Octal: 112615

Duodecimal: 1A1A5

Hexadecimal: 958d

Square: 1465741225

Square Root: 195.66553094502873

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

Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to either SmallGroup(2187,247)-#1;5 or SmallGroup(2187,247)-#1;9. A250242

a(n) = ((n + 1) - 9*(n + 1)² + 8*(n + 1)³)/6. A331987

Expansion of g.f. -(1+x²+x⁴)/((x³+x²+x-1)*(x-1)²). A104187

a(n) = numerator(b(n)), where b(0) = b(1) = 1 and b(n) = n·b(n-1)/b(n-2) for n >= 1. A329654

a(n) = denominator(b(n)), where b(0) = b(1) = 1 and b(n) = n·b(n-1)/b(n-2) for n >= 1. A329813

Number of (n+3) X 5 0..1 matrices with each 4 X 4 subblock idempotent. A224562

Number of non-crossing antichain covers of {1,...,n} without singletons. A359984

Triangle whose (i,j)-th entry is binomial(i,j)*8^i-j*7^j. A38285

Least k such that k + A005117(i) is squarefree with i prime factors, for 1 <= i <= n. A389393