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12072108 = 223172592
BaseRepresentation
bin101110000011…
…010010101100
3211201022211010
4232003102230
511042301413
61110425220
7204416436
oct56032254
924638733
1012072108
1168a5a54
124062210
132668a79
141863656
1510d6dc3
hexb834ac

12072108 has 54 divisors (see below), whose sum is σ = 30438436. Its totient is φ = 3723136.

The previous prime is 12072037. The next prime is 12072119. The reversal of 12072108 is 80127021.

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 17 ways as a sum of consecutive naturals, for example, 204583 + ... + 204641.

Almost surely, 212072108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12072108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15219218).

12072108 is an abundant number, since it is smaller than the sum of its proper divisors (18366328).

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

12072108 is a wasteful number, since it uses less digits than its factorization.

12072108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 12072108 is about 3474.4939199832. The cubic root of 12072108 is about 229.4005055696.

Adding to 12072108 its reverse (80127021), we get a palindrome (92199129).

The spelling of 12072108 in words is "twelve million, seventy-two thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 17 34 51 59 68 102 118 177 204 236 289 354 578 708 867 1003 1156 1734 2006 3009 3468 3481 4012 6018 6962 10443 12036 13924 17051 20886 34102 41772 51153 59177 68204 102306 118354 177531 204612 236708 355062 710124 1006009 2012018 3018027 4024036 6036054 12072108