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388868 = 22671451
BaseRepresentation
bin1011110111100000100
3201202102112
41132330010
544420433
612200152
73206504
oct1367404
9652375
10388868
11246187
12169058
13107ccc
14a1a04
157a348
hex5ef04

388868 has 12 divisors (see below), whose sum is σ = 691152. Its totient is φ = 191400.

The previous prime is 388859. The next prime is 388879. The reversal of 388868 is 868883.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 388868.

It is an unprimeable number.

388868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458 + ... + 993.

It is an arithmetic number, because the mean of its divisors is an integer number (57596).

2388868 is an apocalyptic number.

It is an amenable number.

388868 is a deficient number, since it is larger than the sum of its proper divisors (302284).

388868 is a wasteful number, since it uses less digits than its factorization.

388868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1520 counting only the distinct ones).

The product of its digits is 73728, while the sum is 41.

The square root of 388868 is about 623.5928158663. The cubic root of 388868 is about 72.9906787373.

The spelling of 388868 in words is "three hundred eighty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 67 134 268 1451 2902 5804 97217 194434 388868