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12040887 = 329138401
BaseRepresentation
bin101101111011…
…101010110111
3211122201222210
4231323222313
511040302022
61110024503
7204226425
oct55735267
924581883
1012040887
116884551
124048133
1326577b1
141856115
1510cca0c
hexb7bab7

12040887 has 8 divisors (see below), whose sum is σ = 16608240. Its totient is φ = 7750400.

The previous prime is 12040877. The next prime is 12040907. The reversal of 12040887 is 78804021.

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 12040887 - 24 = 12040871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040807) 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 7 ways as a sum of consecutive naturals, for example, 69114 + ... + 69287.

It is an arithmetic number, because the mean of its divisors is an integer number (2076030).

Almost surely, 212040887 is an apocalyptic number.

12040887 is a deficient number, since it is larger than the sum of its proper divisors (4567353).

12040887 is a wasteful number, since it uses less digits than its factorization.

12040887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138433.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 12040887 is about 3469.9981268006. The cubic root of 12040887 is about 229.2025755888.

The spelling of 12040887 in words is "twelve million, forty thousand, eight hundred eighty-seven".

Divisors: 1 3 29 87 138401 415203 4013629 12040887