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388534 = 2194267
BaseRepresentation
bin1011110110110110110
3201201222011
41132312312
544413114
612154434
73205516
oct1366666
9651864
10388534
11245a03
12168a1a
13107b03
14a1846
157a1c4
hex5edb6

388534 has 4 divisors (see below), whose sum is σ = 582804. Its totient is φ = 194266.

The previous prime is 388529. The next prime is 388541. The reversal of 388534 is 435883.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 388496 and 388505.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 97132 + ... + 97135.

It is an arithmetic number, because the mean of its divisors is an integer number (145701).

2388534 is an apocalyptic number.

388534 is a deficient number, since it is larger than the sum of its proper divisors (194270).

388534 is a wasteful number, since it uses less digits than its factorization.

388534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194269.

The product of its digits is 11520, while the sum is 31.

The square root of 388534 is about 623.3249553804. The cubic root of 388534 is about 72.9697754404.

The spelling of 388534 in words is "three hundred eighty-eight thousand, five hundred thirty-four".

Divisors: 1 2 194267 388534