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52003143 = 3223712437
BaseRepresentation
bin1100011001100…
…0000101000111
310121212000220100
43012120011013
5101303100033
65054335143
71201006443
oct306300507
9117760810
1052003143
1127399805
12154ba4b3
13aa0a0ba
146c99823
154873513
hex3198147

52003143 has 12 divisors (see below), whose sum is σ = 75178168. Its totient is φ = 34639920.

The previous prime is 52003139. The next prime is 52003157. The reversal of 52003143 is 34130025.

52003143 is a `hidden beast` number, since 520 + 0 + 3 + 143 = 666.

It is not a de Polignac number, because 52003143 - 22 = 52003139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52003163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20121 + ... + 22557.

Almost surely, 252003143 is an apocalyptic number.

52003143 is a deficient number, since it is larger than the sum of its proper divisors (23175025).

52003143 is a wasteful number, since it uses less digits than its factorization.

52003143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814 (or 4811 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 52003143 is about 7211.3204754747. The cubic root of 52003143 is about 373.2586355831.

Adding to 52003143 its reverse (34130025), we get a palindrome (86133168).

The spelling of 52003143 in words is "fifty-two million, three thousand, one hundred forty-three".

Divisors: 1 3 9 2371 2437 7113 7311 21339 21933 5778127 17334381 52003143