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12054357 = 327191339
BaseRepresentation
bin101101111110…
…111101010101
3211200102110200
4231332331111
511041214412
61110211113
7204313620
oct55767525
924612420
1012054357
116893687
124053a99
132660973
14185adb7
1510d19dc
hexb7ef55

12054357 has 12 divisors (see below), whose sum is σ = 19899360. Its totient is φ = 6888168.

The previous prime is 12054353. The next prime is 12054359. The reversal of 12054357 is 75345021.

It is a happy number.

It is not a de Polignac number, because 12054357 - 22 = 12054353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12054357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95607 + ... + 95732.

It is an arithmetic number, because the mean of its divisors is an integer number (1658280).

Almost surely, 212054357 is an apocalyptic number.

It is an amenable number.

12054357 is a deficient number, since it is larger than the sum of its proper divisors (7845003).

12054357 is a wasteful number, since it uses less digits than its factorization.

12054357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191352 (or 191349 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 12054357 is about 3471.9385075200. The cubic root of 12054357 is about 229.2880124879.

Adding to 12054357 its reverse (75345021), we get a palindrome (87399378).

The spelling of 12054357 in words is "twelve million, fifty-four thousand, three hundred fifty-seven".

Divisors: 1 3 7 9 21 63 191339 574017 1339373 1722051 4018119 12054357