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12072804 = 2233727191
BaseRepresentation
bin101110000011…
…011101100100
3211201100202220
4232003131210
511042312204
61110432340
7204421452
oct56033544
924640686
1012072804
1168a6527
1240626b0
132669193
1418639d2
1510d71d9
hexb83764

12072804 has 24 divisors (see below), whose sum is σ = 28932288. Its totient is φ = 3915360.

The previous prime is 12072803. The next prime is 12072869. The reversal of 12072804 is 40827021.

12072804 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12072803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13152 + ... + 14039.

It is an arithmetic number, because the mean of its divisors is an integer number (1205512).

Almost surely, 212072804 is an apocalyptic number.

It is an amenable number.

12072804 is an abundant number, since it is smaller than the sum of its proper divisors (16859484).

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

12072804 is a wasteful number, since it uses less digits than its factorization.

12072804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27235 (or 27233 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12072804 is about 3474.5940770110. The cubic root of 12072804 is about 229.4049140701.

Adding to 12072804 its reverse (40827021), we get a palindrome (52899825).

The spelling of 12072804 in words is "twelve million, seventy-two thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 27191 54382 81573 108764 163146 326292 1006067 2012134 3018201 4024268 6036402 12072804