Properties of the Number 24685

Twenty-Four Thousand Six Hundred Eighty-Five

Basics

Value: 24684 → 24685 → 24686

Parity: odd

Prime: No

Previous Prime: 24683

Next Prime: 24691

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 4937

Divisors: 1, 5, 4937, 24685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110000001101101

Octal: 60155

Duodecimal: 12351

Hexadecimal: 606d

Square: 609349225

Square Root: 157.1146078504478

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

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7. A252679

Centered 44-gonal numbers. A195318

Irregular triangle: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 4213. 0 <= k <= A342646(n). A342840

Numbers k such that the continued fraction for sqrt(k) has period 99. A20438

Sums of p-th to the q-th prime where p and q are twin primes. A114379

Number of strings of numbers x(i=1..5) in 0..n with sum i·x(i) equal to n·5. A184705

Number of (2+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7. A252681

Number of pairs of functions (f,g) on a set of n elements into itself satisfying f(x) = g(f(g(x))). A239753

a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n+1-k), where k = [ (n+1)/2 ], s = A000201 (lower Wythoff sequence). A24685