Search a number
-
+
388474 = 21910223
BaseRepresentation
bin1011110110101111010
3201201212221
41132311322
544412344
612154254
73205402
oct1366572
9651787
10388474
11245959
1216898a
13107a88
14a1802
157a184
hex5ed7a

388474 has 8 divisors (see below), whose sum is σ = 613440. Its totient is φ = 183996.

The previous prime is 388471. The next prime is 388477. The reversal of 388474 is 474883.

It is an interprime number because it is at equal distance from previous prime (388471) and next prime (388477).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (388471) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 5074 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (76680).

2388474 is an apocalyptic number.

388474 is a deficient number, since it is larger than the sum of its proper divisors (224966).

388474 is a wasteful number, since it uses less digits than its factorization.

388474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244.

The product of its digits is 21504, while the sum is 34.

The square root of 388474 is about 623.2768245330. The cubic root of 388474 is about 72.9660190880.

The spelling of 388474 in words is "three hundred eighty-eight thousand, four hundred seventy-four".

Divisors: 1 2 19 38 10223 20446 194237 388474