Properties of the Number 39909

Thirty-Nine Thousand Nine Hundred Nine

Basics

Value: 39908 → 39909 → 39910

Parity: odd

Prime: No

Previous Prime: 39901

Next Prime: 39929

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 53 × 251

Divisors: 1, 3, 53, 159, 251, 753, 13303, 39909

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001101111100101

Octal: 115745

Duodecimal: 1B119

Hexadecimal: 9be5

Square: 1592728281

Square Root: 199.77237046198357

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

Number of subsets S of {1,2,...,n} which contain a number that is greater than the sum of the other numbers in S. A95944

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences. A210390

Numbers n such that sum of primes dividing n (with repetition) is equal to the largest prime factor of n+1. A71863

Number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock having one, two or three distinct clockwise edge differences. A210383

Number of (n+1)X5 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences. A210386

a(n) = n!- A088921(n). A119383

Largest coefficient in expansion of ∏_i=1..n (1-q¹+q²-...+(-q)ⁱ). A39909