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388256 = 25111103
BaseRepresentation
bin1011110110010100000
3201201120212
41132302200
544411011
612153252
73204641
oct1366240
9651525
10388256
11245780
12168828
1310794b
14a16c8
157a08b
hex5eca0

388256 has 24 divisors (see below), whose sum is σ = 834624. Its totient is φ = 176320.

The previous prime is 388253. The next prime is 388259. The reversal of 388256 is 652883.

It is an interprime number because it is at equal distance from previous prime (388253) and next prime (388259).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 35 + 82 + 210 + 86 + 57 + 66 .

It is not an unprimeable number, because it can be changed into a prime (388253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200 + ... + 903.

It is an arithmetic number, because the mean of its divisors is an integer number (34776).

2388256 is an apocalyptic number.

It is an amenable number.

388256 is an abundant number, since it is smaller than the sum of its proper divisors (446368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388256 is a wasteful number, since it uses less digits than its factorization.

388256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1116 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 388256 is about 623.1019178273. The cubic root of 388256 is about 72.9523677509.

The spelling of 388256 in words is "three hundred eighty-eight thousand, two hundred fifty-six".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1103 2206 4412 8824 12133 17648 24266 35296 48532 97064 194128 388256