Properties of the Number 12039

Twelve Thousand Thirty-Nine

Basics

Value: 12038 → 12039 → 12040

Parity: odd

Prime: No

Previous Prime: 12037

Next Prime: 12041

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 4013

Divisors: 1, 3, 4013, 12039

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111100000111

Octal: 27407

Duodecimal: 6B73

Hexadecimal: 2f07

Square: 144937521

Square Root: 109.72237693378685

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) = (9·n² - 5·n + 2)/2. A140064

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318024

T(n,k) = 1/k! * ∑_i=0..k (-1)^k-i *C(k,i) * A258222(n,i); triangle T(n,k), n>=0, 0<=k<=n, read by rows. A258223

Array read by antidiagonals: T(m,n) = number of placements of zero or more dominoes on the m X n grid where no two empty squares are horizontally adjacent. A332862

Number of integer partitions of n with non-biquanimous multiplicities. A371840

Numerators of partial sums of a series for sqrt(5)/3. A124397

Number of 3-element nondividing subsets of {1, 2, ..., n}. A187490

a(n) = floor((1 + 1/π)ⁿ). A179492

Ascending sequence of numbers such that the sum of any two distinct elements (even + odd) is a prime number. A180743

Number of (5+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250659