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188868113470 = 25105751178597
BaseRepresentation
bin1010111111100101101…
…0101011010000111110
3200001111112200020221201
42233321122223100332
511043300214112340
6222433111050114
716434220322221
oct2577132532076
9601445606851
10188868113470
117310a143083
123072b67093a
1314a6bc9847a
1491d98bd5b8
154da603279a
hex2bf96ab43e

188868113470 has 16 divisors (see below), whose sum is σ = 339967722528. Its totient is φ = 75546108000.

The previous prime is 188868113417. The next prime is 188868113479. The reversal of 188868113470 is 74311868881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188868113479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968212 + ... + 1146808.

It is an arithmetic number, because the mean of its divisors is an integer number (21247982658).

Almost surely, 2188868113470 is an apocalyptic number.

188868113470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188868113470 is a deficient number, since it is larger than the sum of its proper divisors (151099609058).

188868113470 is a wasteful number, since it uses less digits than its factorization.

188868113470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284355.

The product of its (nonzero) digits is 2064384, while the sum is 55.

The spelling of 188868113470 in words is "one hundred eighty-eight billion, eight hundred sixty-eight million, one hundred thirteen thousand, four hundred seventy".

Divisors: 1 2 5 10 105751 178597 211502 357194 528755 892985 1057510 1785970 18886811347 37773622694 94434056735 188868113470