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Properties of the Number 49686

Forty-Nine Thousand Six Hundred Eighty-Six

Basics

Value: 49685 → 49686 → 49687

Parity: even

Prime: No

Previous Prime: 49681

Next Prime: 49697

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 2 × 13 2

Divisors: 1, 2, 3, 6, 7, 13, 14, 21, 26, 39

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001000010110

Octal: 141026

Duodecimal: 24906

Hexadecimal: c216

Square: 2468698596

Square Root: 222.9035665932692

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

Triangle V(l,p) (l>=0, p=0..l) read by rows: see Formula for definition, see Comments for motivation. A179898
Fixed points of A153212: After a(1) = 1, numbers of the form pi1i1 * pi2i2-i1 * pi3i3-i2 * ... * pikik-ik-1, where pi's are distinct primes present in the prime factorization of n, with i1 < i2 < i3 < ... < ik, and k = A001221(n) and ik = A061395(n). A242421
Numbers k such that all the following properties hold: (i) k·reverse(k) is a square; (ii) k ≠ reverse(k); (iii) k and reverse(k) are not both squares; and (iv) k and reverse(k) have the same number of digits. A82994
Triangle read by rows: the X-transformation of the Catalan triangle A033184. A228334
Numbers A055744(n) such that for any k < n, A055744(k) and A055744(n) do not have all their prime factors in common. A256431
Triangle of numbers of Dyck paths. A39797
Triangle read by rows: numbers of Dyck paths. A39798
a(n) is the difference between the largest and smallest integer solutions to n=x/π(x), where π(x) = A000720(x). A87236
Numbers n such that there exists an m so that squarefree kernel of n = squarefree kernel of m, and n is the sum of the proper divisors of m (m may equal n). A252234
The sum of the numbers on the perimeter of the n X n diamond frame, located at the top of the numerical pyramid containing the positive integers in natural order. A359096