Search a number
-
+
285430612 = 22174319739
BaseRepresentation
bin10001000000110…
…101001101010100
3201220002101012011
4101000311031110
51041032234422
644153434004
710034056135
oct2100651524
9656071164
10285430612
11137133275
127b70b904
134719946c
1429c9dc8c
151a0d2077
hex11035354

285430612 has 24 divisors (see below), whose sum is σ = 530167680. Its totient is φ = 133994880.

The previous prime is 285430601. The next prime is 285430627. The reversal of 285430612 is 216034582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24439 + ... + 34177.

It is an arithmetic number, because the mean of its divisors is an integer number (22090320).

Almost surely, 2285430612 is an apocalyptic number.

It is an amenable number.

285430612 is a deficient number, since it is larger than the sum of its proper divisors (244737068).

285430612 is a wasteful number, since it uses less digits than its factorization.

285430612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191 (or 10189 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 285430612 is about 16894.6918290924. The cubic root of 285430612 is about 658.4157072307.

The spelling of 285430612 in words is "two hundred eighty-five million, four hundred thirty thousand, six hundred twelve".

Divisors: 1 2 4 17 34 68 431 862 1724 7327 9739 14654 19478 29308 38956 165563 331126 662252 4197509 8395018 16790036 71357653 142715306 285430612