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28386127 = 711368651
BaseRepresentation
bin110110001001…
…0001101001111
31222102011110001
41230102031033
524231324002
62452225131
7463164250
oct154221517
958364401
1028386127
1115028a10
12960b1a7
135b5b533
143aacb27
15275aa87
hex1b1234f

28386127 has 8 divisors (see below), whose sum is σ = 35390592. Its totient is φ = 22119000.

The previous prime is 28386121. The next prime is 28386131. The reversal of 28386127 is 72168382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28386127 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 (28386121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184249 + ... + 184402.

It is an arithmetic number, because the mean of its divisors is an integer number (4423824).

Almost surely, 228386127 is an apocalyptic number.

28386127 is a deficient number, since it is larger than the sum of its proper divisors (7004465).

28386127 is a wasteful number, since it uses less digits than its factorization.

28386127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368669.

The product of its digits is 32256, while the sum is 37.

The square root of 28386127 is about 5327.8632677650. The cubic root of 28386127 is about 305.0483735870.

The spelling of 28386127 in words is "twenty-eight million, three hundred eighty-six thousand, one hundred twenty-seven".

Divisors: 1 7 11 77 368651 2580557 4055161 28386127