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12081324 = 2231397243
BaseRepresentation
bin101110000101…
…100010101100
3211201210110110
4232011202230
511043100244
61110540020
7204455343
oct56054254
924653413
1012081324
116901972
124067610
132670018
141866b5a
1510d99b9
hexb858ac

12081324 has 24 divisors (see below), whose sum is σ = 28396480. Its totient is φ = 3997584.

The previous prime is 12081319. The next prime is 12081331. The reversal of 12081324 is 42318021.

It is a self number, because there is not a number n which added to its sum of digits gives 12081324.

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, 1954 + ... + 5289.

Almost surely, 212081324 is an apocalyptic number.

It is an amenable number.

12081324 is an abundant number, since it is smaller than the sum of its proper divisors (16315156).

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

12081324 is a wasteful number, since it uses less digits than its factorization.

12081324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7389 (or 7387 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12081324 is about 3475.8199032746. The cubic root of 12081324 is about 229.4588664705.

Adding to 12081324 its reverse (42318021), we get a palindrome (54399345).

The spelling of 12081324 in words is "twelve million, eighty-one thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 7243 14486 21729 28972 43458 86916 1006777 2013554 3020331 4027108 6040662 12081324