Search a number
-
+
285234968 = 23311150141
BaseRepresentation
bin10001000000000…
…101011100011000
3201212201102211002
4101000011130120
51041010004333
644145324132
710032312554
oct2100053430
9655642732
10285234968
1113700a287
127b636648
134712b3b5
1429c4c864
151a0940e8
hex11005718

285234968 has 16 divisors (see below), whose sum is σ = 552068160. Its totient is φ = 138016800.

The previous prime is 285234967. The next prime is 285234977. The reversal of 285234968 is 869432582.

It is a super-2 number, since 2×2852349682 = 162717973939922048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285234967) 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, 574823 + ... + 575318.

It is an arithmetic number, because the mean of its divisors is an integer number (34504260).

Almost surely, 2285234968 is an apocalyptic number.

It is an amenable number.

285234968 is a deficient number, since it is larger than the sum of its proper divisors (266833192).

285234968 is a wasteful number, since it uses less digits than its factorization.

285234968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150178 (or 1150174 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 285234968 is about 16888.9007339140. The cubic root of 285234968 is about 658.2652392245.

The spelling of 285234968 in words is "two hundred eighty-five million, two hundred thirty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 31 62 124 248 1150141 2300282 4600564 9201128 35654371 71308742 142617484 285234968