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12102406 = 247128749
BaseRepresentation
bin101110001010…
…101100000110
3211202212101021
4232022230012
511044234111
61111221354
7204603661
oct56125406
924685337
1012102406
116916798
12407785a
1326797b4
1418706d8
1510e0d71
hexb8ab06

12102406 has 8 divisors (see below), whose sum is σ = 18540000. Its totient is φ = 5922408.

The previous prime is 12102403. The next prime is 12102427. The reversal of 12102406 is 60420121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12102406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102401) 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, 64281 + ... + 64468.

It is an arithmetic number, because the mean of its divisors is an integer number (2317500).

Almost surely, 212102406 is an apocalyptic number.

12102406 is a deficient number, since it is larger than the sum of its proper divisors (6437594).

12102406 is a wasteful number, since it uses less digits than its factorization.

12102406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128798.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12102406 is about 3478.8512471792. The cubic root of 12102406 is about 229.5922580522.

Adding to 12102406 its reverse (60420121), we get a palindrome (72522527).

The spelling of 12102406 in words is "twelve million, one hundred two thousand, four hundred six".

Divisors: 1 2 47 94 128749 257498 6051203 12102406