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188684052 = 223103152657
BaseRepresentation
bin10110011111100…
…01011100010100
3111011001010212020
423033301130110
5341300342202
630420053140
74450534164
oct1317613424
9434033766
10188684052
1197564137
12532341b0
133012478b
141b0b85a4
15118715bc
hexb3f1714

188684052 has 24 divisors (see below), whose sum is σ = 444540096. Its totient is φ = 62283648.

The previous prime is 188684051. The next prime is 188684077. The reversal of 188684052 is 250486881.

It is a junction number, because it is equal to n+sod(n) for n = 188683995 and 188684013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188684051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75093 + ... + 77564.

It is an arithmetic number, because the mean of its divisors is an integer number (18522504).

Almost surely, 2188684052 is an apocalyptic number.

188684052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188684052 is an abundant number, since it is smaller than the sum of its proper divisors (255856044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188684052 is a wasteful number, since it uses less digits than its factorization.

188684052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152767 (or 152765 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 188684052 is about 13736.2313608937. The cubic root of 188684052 is about 573.5593951093.

The spelling of 188684052 in words is "one hundred eighty-eight million, six hundred eighty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 152657 305314 457971 610628 915942 1831884 15723671 31447342 47171013 62894684 94342026 188684052