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188946042 = 2343739991
BaseRepresentation
bin10110100001100…
…01011001111010
3111011112110020120
423100301121322
5341332233132
630425434110
74453005045
oct1320613172
9434473216
10188946042
1197722a5a
125333b936
13301b6abc
141b145c5c
15118c402c
hexb43167a

188946042 has 32 divisors (see below), whose sum is σ = 387594240. Its totient is φ = 61372080.

The previous prime is 188946019. The next prime is 188946047. The reversal of 188946042 is 240649881.

188946042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 188945985 and 188946003.

It is not an unprimeable number, because it can be changed into a prime (188946047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190167 + ... + 191157.

It is an arithmetic number, because the mean of its divisors is an integer number (12112320).

Almost surely, 2188946042 is an apocalyptic number.

188946042 is an abundant number, since it is smaller than the sum of its proper divisors (198648198).

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

188946042 is a wasteful number, since it uses less digits than its factorization.

188946042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 188946042 is about 13745.7645112958. The cubic root of 188946042 is about 573.8247369667.

The spelling of 188946042 in words is "one hundred eighty-eight million, nine hundred forty-six thousand, forty-two".

Divisors: 1 2 3 6 43 86 129 258 739 991 1478 1982 2217 2973 4434 5946 31777 42613 63554 85226 95331 127839 190662 255678 732349 1464698 2197047 4394094 31491007 62982014 94473021 188946042