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188669042 = 2859109819
BaseRepresentation
bin10110011111011…
…01110001110010
3111011000101021022
423033231301302
5341244402132
630415455442
74450442342
oct1317556162
9434011238
10188669042
1197553931
1253227582
133011a9b3
141b0b2d22
151186be12
hexb3edc72

188669042 has 8 divisors (see below), whose sum is σ = 283335600. Its totient is φ = 94223844.

The previous prime is 188669027. The next prime is 188669059. The reversal of 188669042 is 240966881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 188668984 and 188669002.

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 3 ways as a sum of consecutive naturals, for example, 53192 + ... + 56627.

It is an arithmetic number, because the mean of its divisors is an integer number (35416950).

Almost surely, 2188669042 is an apocalyptic number.

188669042 is a deficient number, since it is larger than the sum of its proper divisors (94666558).

188669042 is a wasteful number, since it uses less digits than its factorization.

188669042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110680.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 188669042 is about 13735.6849847396. The cubic root of 188669042 is about 573.5441856366.

The spelling of 188669042 in words is "one hundred eighty-eight million, six hundred sixty-nine thousand, forty-two".

Divisors: 1 2 859 1718 109819 219638 94334521 188669042