Search a number
-
+
386540252 = 22713805009
BaseRepresentation
bin10111000010100…
…010001011011100
3222221100021112122
4113002202023130
51242423242002
6102204522112
712402352340
oct2702421334
9887307478
10386540252
1118921245a
12a9550338
136210b057
143949d620
1523e056a2
hex170a22dc

386540252 has 12 divisors (see below), whose sum is σ = 773080560. Its totient is φ = 165660096.

The previous prime is 386540239. The next prime is 386540279. The reversal of 386540252 is 252045683.

386540252 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 6902477 + ... + 6902532.

It is an arithmetic number, because the mean of its divisors is an integer number (64423380).

Almost surely, 2386540252 is an apocalyptic number.

It is an amenable number.

386540252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

386540252 is a wasteful number, since it uses less digits than its factorization.

386540252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13805020 (or 13805018 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 386540252 is about 19660.6269482944. The cubic root of 386540252 is about 728.4474742640.

The spelling of 386540252 in words is "three hundred eighty-six million, five hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 13805009 27610018 55220036 96635063 193270126 386540252