Properties of the Number 27900

Twenty-Seven Thousand Nine Hundred

Basics

Value: 27899 → 27900 → 27901

Parity: even

Prime: No

Previous Prime: 27893

Next Prime: 27901

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 5 ² × 31

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110011111100

Octal: 66374

Duodecimal: 14190

Hexadecimal: 6cfc

Square: 778410000

Square Root: 167.03293088490065

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) = n²*(n+1). A11379

Expansion of g.f.: (1+x)/(1-30·x). A170750

Exponential abundant numbers: integers k for which A126164(k) > k, or equivalently for which A051377(k) > 2k. A129575

E.g.f. satisfies: A(x) = 1/(1 - x·A(x))^A(x). A349556

Numbers that have exactly seven prime factors counted with multiplicity (A046308) whose digit reversal is different and also has 7 prime factors (with multiplicity). A109027

Exponential unitary abundant numbers: numbers k such that A322857(k) > 2·k. A383693

Numbers that have exactly three exponents in their prime factorization that are equal to 2. A386798

a(n) = (4·n³ + n² - 3·n)/2. A172073

Ordered areas of primitive integer Soddyian triangles. A210484

Exponential admirable numbers: numbers k such that there is a proper exponential divisor d of k such that esigma(k) - 2·d = 2·k, where esigma is the sum of exponential divisors function (A051377). A336680