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388396 = 22891091
BaseRepresentation
bin1011110110100101100
3201201210001
41132310230
544412041
612154044
73205231
oct1366454
9651701
10388396
11245898
12168924
13107a28
14a1788
157a131
hex5ed2c

388396 has 12 divisors (see below), whose sum is σ = 687960. Its totient is φ = 191840.

The previous prime is 388391. The next prime is 388403. The reversal of 388396 is 693883.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (388391) 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, 190 + ... + 901.

It is an arithmetic number, because the mean of its divisors is an integer number (57330).

2388396 is an apocalyptic number.

It is an amenable number.

388396 is a deficient number, since it is larger than the sum of its proper divisors (299564).

388396 is a wasteful number, since it uses less digits than its factorization.

388396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1182 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 388396 is about 623.2142488743. The cubic root of 388396 is about 72.9611352515.

It can be divided in two parts, 388 and 396, that added together give a square (784 = 282).

The spelling of 388396 in words is "three hundred eighty-eight thousand, three hundred ninety-six".

Divisors: 1 2 4 89 178 356 1091 2182 4364 97099 194198 388396