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18802052 = 2213013613
BaseRepresentation
bin100011110111…
…0010110000100
31022101020120022
41013232112010
514303131202
61510554312
7315546323
oct107562604
938336508
1018802052
11a682295
126368998
133b84099
1426d60ba
1519b5ea2
hex11ee584

18802052 has 12 divisors (see below), whose sum is σ = 32937996. Its totient is φ = 9391200.

The previous prime is 18802033. The next prime is 18802057. The reversal of 18802052 is 25020881.

It can be written as a sum of positive squares in 2 ways, for example, as 18496 + 18783556 = 136^2 + 4334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18802057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3398 + ... + 7010.

It is an arithmetic number, because the mean of its divisors is an integer number (2744833).

Almost surely, 218802052 is an apocalyptic number.

It is an amenable number.

18802052 is a deficient number, since it is larger than the sum of its proper divisors (14135944).

18802052 is a wasteful number, since it uses less digits than its factorization.

18802052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 18802052 is about 4336.1333005340. The cubic root of 18802052 is about 265.9102529501.

The spelling of 18802052 in words is "eighteen million, eight hundred two thousand, fifty-two".

Divisors: 1 2 4 1301 2602 3613 5204 7226 14452 4700513 9401026 18802052