Properties of the Number 30438

Thirty Thousand Four Hundred Thirty-Eight

Basics

Value: 30437 → 30438 → 30439

Parity: even

Prime: No

Previous Prime: 30431

Next Prime: 30449

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 19 × 89

Divisors: 1, 2, 3, 6, 9, 18, 19, 38, 57, 89

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011011100110

Octal: 73346

Duodecimal: 15746

Hexadecimal: 76e6

Square: 926471844

Square Root: 174.46489618258454

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) = min_k=1..n (a(k-1) + 2^k*(n + a(n-k))); a(0) = 0. A6696

Number of partitions satisfying 0 < cn(1,5) + cn(4,5). A39898

A Jacobsthal Fibonacci product. A93121

Average of 4 primes where the integer Schwarzian derivative is zero. A94903

a(n) = (1/5ⁿ) * ∑_k=0..n² ( (binomial(n², k) * 2^n²-k * 3^k) (mod 5ⁿ) ). A376535

a(n) = A030019(n)*n! (or A035051*(n-1)!). A30438

Number of nX4 0..1 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors. A231540

Number of nX4 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s. A296823