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12042173 = 111384211
BaseRepresentation
bin101101111011…
…111110111101
3211122210202102
4231323332331
511040322143
61110034445
7204233243
oct55737675
924583672
1012042173
116885510
124048a25
132658260
141856793
1510cd0b8
hexb7bfbd

12042173 has 8 divisors (see below), whose sum is σ = 14147616. Its totient is φ = 10105200.

The previous prime is 12042169. The next prime is 12042197. The reversal of 12042173 is 37124021.

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

It is a cyclic number.

It is not a de Polignac number, because 12042173 - 22 = 12042169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41963 + ... + 42248.

It is an arithmetic number, because the mean of its divisors is an integer number (1768452).

Almost surely, 212042173 is an apocalyptic number.

12042173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12042173 is a deficient number, since it is larger than the sum of its proper divisors (2105443).

12042173 is a wasteful number, since it uses less digits than its factorization.

12042173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84235.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12042173 is about 3470.1834245469. The cubic root of 12042173 is about 229.2107351211.

Adding to 12042173 its reverse (37124021), we get a palindrome (49166194).

The spelling of 12042173 in words is "twelve million, forty-two thousand, one hundred seventy-three".

Divisors: 1 11 13 143 84211 926321 1094743 12042173