Search a number
-
+
28200014 = 216018807
BaseRepresentation
bin110101110010…
…0110001001110
31222001201010222
41223210301032
524204400024
62444231342
7461460533
oct153446116
958051128
1028200014
1114a110a7
12953b552
135ac48cb
143a60d8a
15272085e
hex1ae4c4e

28200014 has 8 divisors (see below), whose sum is σ = 42331248. Its totient is φ = 14089600.

The previous prime is 28200013. The next prime is 28200017. The reversal of 28200014 is 41000282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28199965 and 28200001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28200013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202 + ... + 7605.

It is an arithmetic number, because the mean of its divisors is an integer number (5291406).

Almost surely, 228200014 is an apocalyptic number.

28200014 is a deficient number, since it is larger than the sum of its proper divisors (14131234).

28200014 is a wasteful number, since it uses less digits than its factorization.

28200014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10410.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 28200014 is about 5310.3685371168. The cubic root of 28200014 is about 304.3802303084.

Adding to 28200014 its reverse (41000282), we get a palindrome (69200296).

The spelling of 28200014 in words is "twenty-eight million, two hundred thousand, fourteen".

Divisors: 1 2 1601 3202 8807 17614 14100007 28200014