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30124284 = 2233497193
BaseRepresentation
bin111001011101…
…0100011111100
32002200110202020
41302322203330
530202434114
62553400140
7514023621
oct162724374
962613666
1030124284
1116005903
12a109050
136319728
144002348
1529a0aa9
hex1cba8fc

30124284 has 24 divisors (see below), whose sum is σ = 70501200. Its totient is φ = 10011264.

The previous prime is 30124249. The next prime is 30124313. The reversal of 30124284 is 48242103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592 + ... + 7784.

It is an arithmetic number, because the mean of its divisors is an integer number (2937550).

Almost surely, 230124284 is an apocalyptic number.

It is an amenable number.

30124284 is an abundant number, since it is smaller than the sum of its proper divisors (40376916).

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

30124284 is a wasteful number, since it uses less digits than its factorization.

30124284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549 (or 7547 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 30124284 is about 5488.5593738248. The cubic root of 30124284 is about 311.1517475075.

Adding to 30124284 its reverse (48242103), we get a palindrome (78366387).

The spelling of 30124284 in words is "thirty million, one hundred twenty-four thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 349 698 1047 1396 2094 4188 7193 14386 21579 28772 43158 86316 2510357 5020714 7531071 10041428 15062142 30124284