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386021875 = 55123527
BaseRepresentation
bin10111000000100…
…011100111110011
3222220100221110111
4113000203213303
51242310200000
6102145442151
712365063131
oct2700434763
9886327414
10386021875
11188998a48
12a9340357
1361c89115
14393a6751
1523d51cba
hex170239f3

386021875 has 12 divisors (see below), whose sum is σ = 482500368. Its totient is φ = 308815000.

The previous prime is 386021863. The next prime is 386021891. The reversal of 386021875 is 578120683.

It is a de Polignac number, because none of the positive numbers 2k-386021875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58639 + ... + 64888.

It is an arithmetic number, because the mean of its divisors is an integer number (40208364).

Almost surely, 2386021875 is an apocalyptic number.

386021875 is a deficient number, since it is larger than the sum of its proper divisors (96478493).

386021875 is an frugal number, since it uses more digits than its factorization.

386021875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123552 (or 123532 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 386021875 is about 19647.4394005937. The cubic root of 386021875 is about 728.1216959087.

The spelling of 386021875 in words is "three hundred eighty-six million, twenty-one thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 625 3125 123527 617635 3088175 15440875 77204375 386021875