Properties of the Number 50399

Fifty Thousand Three Hundred Ninety-Nine

Basics

Value: 50398 → 50399 → 50400

Parity: odd

Prime: No

Previous Prime: 50387

Next Prime: 50411

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 101 × 499

Divisors: 1, 101, 499, 50399

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100010011011111

Octal: 142337

Duodecimal: 251BB

Hexadecimal: c4df

Square: 2540059201

Square Root: 224.49721601837294

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

Triangle read by rows, e.g.f. exp(x·z)/((exp(x/2)+exp(x·3/2))/((exp(3·x/2)+2·cos(sqrt(3)*x/2))/3)-1). A215065

a(1)=1. a(n) = the smallest integer > a(n-1) such that d(a(n))+d(a(n)+1) > d(a(n-1))+d(a(n-1)+1), where d(m) = the number of divisors of m. A175143

a(n) = ∑_i=0..n digsum₉(i)⁴, where digsum₉(i) = A053830(i). A231687

Numbers k where records occur for σ(k+1)/σ(k), where σ(k) is the sum of divisors of k (A000203). A335067

Expansion of (5-19·x)/(1-10·x+23·x²). A164038

Numbers k for which d(k-1) + d(k+1) is a record, where d(k) is the number of divisors of k. A189828

Positive numbers k such that (sin k)^k sets a new record. A383540

a(n) = 56·n² - 1. A158658

Numbers m such that m mod k is k-1 for all k = 2..9. A166931

k such that 0 = ∑_j=1..k A373223(k, j). The indices of the rows in Gauss's triangle with vanishing row sums. A373181