Properties of the Number 30940

Thirty Thousand Nine Hundred Forty

Basics

Value: 30939 → 30940 → 30941

Parity: even

Prime: No

Previous Prime: 30937

Next Prime: 30941

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 7 × 13 × 17

Divisors: 1, 2, 4, 5, 7, 10, 13, 14, 17, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011011100

Octal: 74334

Duodecimal: 15AA4

Hexadecimal: 78dc

Square: 957283600

Square Root: 175.8976975403601

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) = binomial(n+5,5)*(n+3)/3. A40977

In the interior of a regular 2n-gon with all diagonals drawn, the number of points where exactly three diagonals intersect. A101363

Numbers k such that the sum of the squares of the divisors of k is divisible by k. A46762

a(n) = n⁴ + n³ + n² + n. A27445

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 4,3,2,1,0 for x=0,1,2,3,4. A197217

Expansion of (1/x) * Series_Reversion( x / (1 + x³ * (1 + x)²) ). A389129

Sums of distinct powers of 13. A33049

Expansion of 1 / ((1 - x)⁷*(1 + x)⁵). A299337

Row sums of A075652. A75650

Seventh column (m=6) of (1,3)-Pascal triangle A095660. A95662