Properties of the Number 12320

Twelve Thousand Three Hundred Twenty

Basics

Value: 12319 → 12320 → 12321

Parity: even

Prime: No

Previous Prime: 12301

Next Prime: 12323

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 5 × 7 × 11

Divisors: 1, 2, 4, 5, 7, 8, 10, 11, 14, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 11000000100000

Octal: 30040

Duodecimal: 7168

Hexadecimal: 3020

Square: 151782400

Square Root: 110.99549540409286

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

Triple factorial numbers a(n) = n!!!, defined by a(n) = n·a(n-3), a(0) = a(1) = 1, a(2) = 2. Sometimes written n!3. A7661

Triple factorial numbers: ∏_k=0..n-1 (3·k+2). A8544

Coefficient triangle of certain polynomials N(4; m,x). A62264

If X₁, ..., X_n is a partition of a 2n-set X into 2-blocks then a(n) is equal to the number of 3-subsets of X containing none of X_i, (i=1,...,n). A130809

Triangle read by rows: the Bell transform of the triple factorial numbers A008544 without column 0. A4747

Multiples of 8 with digit sum 8. A69543

Regular triangle where T(n,k) is the number of non-isomorphic multiset partitions of weight n with k connected components. A321194

T(n,k)=Number of length n+3 0..k arrays with no disjoint pairs in any consecutive four terms having the same sum. A247726

Triangle read by rows, s₃(n, k) where s_m(n, k) are the Stirling-Frobenius cycle numbers of order m; n >= 0, k >= 0. A225470

Number of binary codes of length 9 with n words. A34194