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52003111 = 159732563
BaseRepresentation
bin1100011001100…
…0000100100111
310121212000212011
43012120010213
5101303044421
65054335051
71201006366
oct306300447
9117760764
1052003111
1127399786
12154ba487
13aa0a094
146c997dd
1548734e1
hex3198127

52003111 has 4 divisors (see below), whose sum is σ = 52037272. Its totient is φ = 51968952.

The previous prime is 52003109. The next prime is 52003117. The reversal of 52003111 is 11130025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52003111 - 21 = 52003109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52003091 and 52003100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52003117) 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 3 ways as a sum of consecutive naturals, for example, 14685 + ... + 17878.

It is an arithmetic number, because the mean of its divisors is an integer number (13009318).

Almost surely, 252003111 is an apocalyptic number.

52003111 is a deficient number, since it is larger than the sum of its proper divisors (34161).

52003111 is a wasteful number, since it uses less digits than its factorization.

52003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34160.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 52003111 is about 7211.3182567406. The cubic root of 52003111 is about 373.2585590219.

Adding to 52003111 its reverse (11130025), we get a palindrome (63133136).

The spelling of 52003111 in words is "fifty-two million, three thousand, one hundred eleven".

Divisors: 1 1597 32563 52003111