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12042039 = 310338971
BaseRepresentation
bin101101111011…
…111100110111
3211122210120110
4231323330313
511040321124
61110034103
7204232662
oct55737467
924583513
1012042039
1168853a9
124048933
132658189
1418566d9
1510cd029
hexb7bf37

12042039 has 8 divisors (see below), whose sum is σ = 16212352. Its totient is φ = 7949880.

The previous prime is 12041999. The next prime is 12042053. The reversal of 12042039 is 93024021.

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

It is not a de Polignac number, because 12042039 - 29 = 12041527 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 (12042059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19177 + ... + 19794.

It is an arithmetic number, because the mean of its divisors is an integer number (2026544).

Almost surely, 212042039 is an apocalyptic number.

12042039 is a deficient number, since it is larger than the sum of its proper divisors (4170313).

12042039 is a wasteful number, since it uses less digits than its factorization.

12042039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39077.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12042039 is about 3470.1641171564. The cubic root of 12042039 is about 229.2098849326.

The spelling of 12042039 in words is "twelve million, forty-two thousand, thirty-nine".

Divisors: 1 3 103 309 38971 116913 4014013 12042039