Search a number
-
+
286468540 = 22514323427
BaseRepresentation
bin10001000100110…
…010100110111100
3201222001002221221
4101010302212330
51041313443130
644232003124
710045641151
oct2104624674
9658032857
10286468540
11137782066
127bb304a4
1347470a17
142a090228
151a23987a
hex111329bc

286468540 has 12 divisors (see below), whose sum is σ = 601583976. Its totient is φ = 114587408.

The previous prime is 286468499. The next prime is 286468577. The reversal of 286468540 is 45864682.

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, 7161694 + ... + 7161733.

It is an arithmetic number, because the mean of its divisors is an integer number (50131998).

Almost surely, 2286468540 is an apocalyptic number.

286468540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286468540 is an abundant number, since it is smaller than the sum of its proper divisors (315115436).

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

286468540 is a wasteful number, since it uses less digits than its factorization.

286468540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14323436 (or 14323434 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 286468540 is about 16925.3815318887. The cubic root of 286468540 is about 659.2128203069.

The spelling of 286468540 in words is "two hundred eighty-six million, four hundred sixty-eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 14323427 28646854 57293708 71617135 143234270 286468540