Properties of the Number 27321

Twenty-Seven Thousand Three Hundred Twenty-One

Basics

Value: 27320 → 27321 → 27322

Parity: odd

Prime: No

Previous Prime: 27299

Next Prime: 27329

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 1301

Divisors: 1, 3, 7, 21, 1301, 3903, 9107, 27321

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101010111001

Octal: 65271

Duodecimal: 13989

Hexadecimal: 6ab9

Square: 746437041

Square Root: 165.29065309327083

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 T(n, k) = binomial(n+1, k)*A142459(n+1, k+1)/(k+1), read by rows. A155493

Second elementary symmetric function of the first n terms of (1,2,2,3,3,4,4,5,5...). A203298

Numbers k such that 35·2^k+1 is prime. A32367

Triangle T(n,k) = binomial(n, k)*(3·binomial(n, k)² - binomial(n, k) - 1), read by rows. A144405

Sum of largest parts of all partitions of n plus n. Also, total number of parts in all partitions of n plus n. A225596

Triangle, read by rows, equal to the matrix inverse of A104416, where A104416(n,k) = A008275(k+1,n-k+1) (Stirling numbers of the first kind). A104417

a(n) = (n+1)*(n³+15·n²+74·n+132)/12. A217947

Greatest integer whose square root is less than or equal to ∑_j=0..n sqrt(j). A338277

The number of unit squares enclosed by the rectangular spiral of which the n-th side has length prime(n). A356465

Duplicate of A027315. A27321