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388058 = 21131569
BaseRepresentation
bin1011110101111011010
3201201022112
41132233122
544404213
612152322
73204236
oct1365732
9651275
10388058
11245610
121686a2
13107828
14a15c6
1579ea8
hex5ebda

388058 has 16 divisors (see below), whose sum is σ = 656640. Its totient is φ = 170400.

The previous prime is 388057. The next prime is 388067. The reversal of 388058 is 850883.

It is a happy number.

It is a super-3 number, since 3×3880583 = 175311811715673336, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (388051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 966.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2388058 is an apocalyptic number.

388058 is a deficient number, since it is larger than the sum of its proper divisors (268582).

388058 is a wasteful number, since it uses less digits than its factorization.

388058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 388058 is about 622.9430150503. The cubic root of 388058 is about 72.9399644011.

The spelling of 388058 in words is "three hundred eighty-eight thousand, fifty-eight".

Divisors: 1 2 11 22 31 62 341 569 682 1138 6259 12518 17639 35278 194029 388058