Search a number
-
+
52404189 = 3232926189
BaseRepresentation
bin1100011111100…
…1111111011101
310122121102000220
43013321333131
5101403413224
65111111553
71204266615
oct307717735
9118542026
1052404189
1127643052
12156725b9
13ab1a7c6
146d61a45
154902279
hex31f9fdd

52404189 has 16 divisors (see below), whose sum is σ = 75427200. Its totient is φ = 32263616.

The previous prime is 52404181. The next prime is 52404193. The reversal of 52404189 is 98140425.

It is a cyclic number.

It is not a de Polignac number, because 52404189 - 23 = 52404181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52404181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11094 + ... + 15095.

It is an arithmetic number, because the mean of its divisors is an integer number (4714200).

Almost surely, 252404189 is an apocalyptic number.

It is an amenable number.

52404189 is a deficient number, since it is larger than the sum of its proper divisors (23023011).

52404189 is a wasteful number, since it uses less digits than its factorization.

52404189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26244.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 52404189 is about 7239.0737667191. The cubic root of 52404189 is about 374.2156976855.

The spelling of 52404189 in words is "fifty-two million, four hundred four thousand, one hundred eighty-nine".

Divisors: 1 3 23 29 69 87 667 2001 26189 78567 602347 759481 1807041 2278443 17468063 52404189