Properties of the Number 12390

Twelve Thousand Three Hundred Ninety

Basics

Value: 12389 → 12390 → 12391

Parity: even

Prime: No

Previous Prime: 12379

Next Prime: 12391

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 7 × 59

Divisors: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000001100110

Octal: 30146

Duodecimal: 7206

Hexadecimal: 3066

Square: 153512100

Square Root: 111.31037687475504

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

Products of exactly 5 distinct primes. A46387

Numbers k for which nontrivial positive magic squares of exactly 9 different orders with magic sum k exist. For a definition of nontrivial positive magic squares, see A125005. A125016

7 times hexagonal numbers: a(n) = 7·n*(2·n-1). A195320

T(n,k)=Number of length-n 0..k arrays with no repeated value differing from the previous repeated value by other than plus or minus one modulo k+1. A269678

Matrix 5th power of Stirling2 triangle A008277. A39813

Triangle read by rows: T(n,k) is the number of sets of noncrossing paths of size k that cover n nodes arranged in a circle with one node paths allowed, 0 <= k <= n. A390894

Number of labeled n-node 4-valent graphs containing a loop and a double edge. A58837

Numbers n such that smallest number not dividing n² (A236454) is different from smallest prime not dividing n (A053669). A235921

Second accumulation array, T, of the natural number array A000027, by antidiagonals. A185507

Fourth accumulation array of A051340, by antidiagonals. A185876