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188983230 = 23512774933
BaseRepresentation
bin10110100001110…
…10011110111110
3111011121100020220
423100322132332
5341334430410
630430322210
74453221342
oct1320723676
9434540226
10188983230
1197748997
1253359366
13301ca9c7
141b155622
15118d0070
hexb43a7be

188983230 has 32 divisors (see below), whose sum is σ = 454006944. Its totient is φ = 50345856.

The previous prime is 188983229. The next prime is 188983243. The reversal of 188983230 is 32389881.

It is a super-2 number, since 2×1889832302 = 71429322442465800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35844 + ... + 40776.

It is an arithmetic number, because the mean of its divisors is an integer number (14187717).

Almost surely, 2188983230 is an apocalyptic number.

188983230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188983230 is an abundant number, since it is smaller than the sum of its proper divisors (265023714).

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

188983230 is a wasteful number, since it uses less digits than its factorization.

188983230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 188983230 is about 13747.1171523342. The cubic root of 188983230 is about 573.8623808609.

The spelling of 188983230 in words is "one hundred eighty-eight million, nine hundred eighty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1277 2554 3831 4933 6385 7662 9866 12770 14799 19155 24665 29598 38310 49330 73995 147990 6299441 12598882 18898323 31497205 37796646 62994410 94491615 188983230