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188345214 = 23219550717
BaseRepresentation
bin10110011100111…
…10101101111110
3111010101221001200
423032132231332
5341204021324
630404520330
74444623261
oct1316365576
9433357050
10188345214
1197352602
12530b00a6
1330036495
141b02acd8
1511805ec9
hexb39eb7e

188345214 has 24 divisors (see below), whose sum is σ = 429560040. Its totient is φ = 59477328.

The previous prime is 188345197. The next prime is 188345219. The reversal of 188345214 is 412543881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188345219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275017 + ... + 275700.

It is an arithmetic number, because the mean of its divisors is an integer number (17898335).

Almost surely, 2188345214 is an apocalyptic number.

188345214 is an abundant number, since it is smaller than the sum of its proper divisors (241214826).

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

188345214 is a wasteful number, since it uses less digits than its factorization.

188345214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550744 (or 550741 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 188345214 is about 13723.8920864309. The cubic root of 188345214 is about 573.2158575636.

The spelling of 188345214 in words is "one hundred eighty-eight million, three hundred forty-five thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 550717 1101434 1652151 3304302 4956453 9912906 10463623 20927246 31390869 62781738 94172607 188345214