Search a number
-
+
285786348 = 22323815529
BaseRepresentation
bin10001000010001…
…100000011101100
3201220202110011120
4101002030003230
51041130130343
644205220540
710040100231
oct2102140354
9656673146
10285786348
11137356571
127b861750
1347292363
1429d53788
151a152683
hex1108c0ec

285786348 has 12 divisors (see below), whose sum is σ = 666834840. Its totient is φ = 95262112.

The previous prime is 285786343. The next prime is 285786349. The reversal of 285786348 is 843687582.

It is a happy number.

285786348 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 285786348.

It is not an unprimeable number, because it can be changed into a prime (285786343) 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, 11907753 + ... + 11907776.

It is an arithmetic number, because the mean of its divisors is an integer number (55569570).

Almost surely, 2285786348 is an apocalyptic number.

It is an amenable number.

285786348 is an abundant number, since it is smaller than the sum of its proper divisors (381048492).

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

285786348 is a wasteful number, since it uses less digits than its factorization.

285786348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23815536 (or 23815534 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 285786348 is about 16905.2165913365. The cubic root of 285786348 is about 658.6891244499.

The spelling of 285786348 in words is "two hundred eighty-five million, seven hundred eighty-six thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 23815529 47631058 71446587 95262116 142893174 285786348