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30123104 = 251185577
BaseRepresentation
bin111001011101…
…0010001100000
32002200102010112
41302322101200
530202414404
62553350452
7514020314
oct162722140
962612115
1030123104
1116004a30
12a108428
13631902b
144001b44
1529a056e
hex1cba460

30123104 has 24 divisors (see below), whose sum is σ = 64696968. Its totient is φ = 13692160.

The previous prime is 30123097. The next prime is 30123109. The reversal of 30123104 is 40132103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123109) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42437 + ... + 43140.

It is an arithmetic number, because the mean of its divisors is an integer number (2695707).

Almost surely, 230123104 is an apocalyptic number.

It is an amenable number.

30123104 is an abundant number, since it is smaller than the sum of its proper divisors (34573864).

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

30123104 is a wasteful number, since it uses less digits than its factorization.

30123104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85598 (or 85590 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30123104 is about 5488.4518764402. The cubic root of 30123104 is about 311.1476847404.

Adding to 30123104 its reverse (40132103), we get a palindrome (70255207).

It can be divided in two parts, 3012 and 3104, that added together give a palindrome (6116).

The spelling of 30123104 in words is "thirty million, one hundred twenty-three thousand, one hundred four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 85577 171154 342308 684616 941347 1369232 1882694 2738464 3765388 7530776 15061552 30123104