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387057387 = 3479269351
BaseRepresentation
bin10111000100100…
…000011011101011
3222222022112220210
4113010200123223
51243041314022
6102223552203
712406635123
oct2704403353
9888275823
10387057387
11189535a42
12a975b663
136225c552
1439595c83
1523ea8a0c
hex171206eb

387057387 has 8 divisors (see below), whose sum is σ = 517155840. Its totient is φ = 257498600.

The previous prime is 387057371. The next prime is 387057421. The reversal of 387057387 is 783750783.

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

It is a cyclic number.

It is not a de Polignac number, because 387057387 - 24 = 387057371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387057337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133239 + ... + 136112.

It is an arithmetic number, because the mean of its divisors is an integer number (64644480).

Almost surely, 2387057387 is an apocalyptic number.

387057387 is a deficient number, since it is larger than the sum of its proper divisors (130098453).

387057387 is a wasteful number, since it uses less digits than its factorization.

387057387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269833.

The product of its (nonzero) digits is 987840, while the sum is 48.

The square root of 387057387 is about 19673.7740914142. The cubic root of 387057387 is about 728.7721819884.

The spelling of 387057387 in words is "three hundred eighty-seven million, fifty-seven thousand, three hundred eighty-seven".

Divisors: 1 3 479 1437 269351 808053 129019129 387057387