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12042087 = 323199877
BaseRepresentation
bin101101111011…
…111101100111
3211122210122020
4231323331213
511040321322
61110034223
7204233061
oct55737547
924583566
1012042087
116885442
124048973
1326581c5
141856731
1510cd05c
hexb7bf67

12042087 has 16 divisors (see below), whose sum is σ = 16857600. Its totient is φ = 7631712.

The previous prime is 12042083. The next prime is 12042089. The reversal of 12042087 is 78024021.

It is not a de Polignac number, because 12042087 - 22 = 12042083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13293 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (1053600).

Almost surely, 212042087 is an apocalyptic number.

12042087 is a deficient number, since it is larger than the sum of its proper divisors (4815513).

12042087 is a wasteful number, since it uses less digits than its factorization.

12042087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12042087 is about 3470.1710332489. The cubic root of 12042087 is about 229.2101894784.

The spelling of 12042087 in words is "twelve million, forty-two thousand, eighty-seven".

Divisors: 1 3 23 69 199 597 877 2631 4577 13731 20171 60513 174523 523569 4014029 12042087