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388371 = 3129457
BaseRepresentation
bin1011110110100010011
3201201202010
41132310103
544411441
612154003
73205164
oct1366423
9651663
10388371
11245875
12168903
13107a09
14a176b
157a116
hex5ed13

388371 has 4 divisors (see below), whose sum is σ = 517832. Its totient is φ = 258912.

The previous prime is 388369. The next prime is 388373. The reversal of 388371 is 173883.

388371 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (388369) and next prime (388373).

It is not a de Polignac number, because 388371 - 21 = 388369 is a prime.

It is a D-number.

It is a Duffinian number.

388371 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64726 + ... + 64731.

It is an arithmetic number, because the mean of its divisors is an integer number (129458).

2388371 is an apocalyptic number.

388371 is a deficient number, since it is larger than the sum of its proper divisors (129461).

388371 is a wasteful number, since it uses less digits than its factorization.

388371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129460.

The product of its digits is 4032, while the sum is 30.

The square root of 388371 is about 623.1941912438. The cubic root of 388371 is about 72.9595697810.

The spelling of 388371 in words is "three hundred eighty-eight thousand, three hundred seventy-one".

Divisors: 1 3 129457 388371