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27988054 = 273191699
BaseRepresentation
bin110101011000…
…1000001010110
31221122221101121
41222301001112
524131104204
62435514154
7456615553
oct152610126
957587347
1027988054
1114886926
12945895a
135a4c2a3
143a07a2a
1526ccb54
hex1ab1056

27988054 has 8 divisors (see below), whose sum is σ = 42557400. Its totient is φ = 13802256.

The previous prime is 27988049. The next prime is 27988091. The reversal of 27988054 is 45088972.

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

It is a self number, because there is not a number n which added to its sum of digits gives 27988054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95704 + ... + 95995.

It is an arithmetic number, because the mean of its divisors is an integer number (5319675).

Almost surely, 227988054 is an apocalyptic number.

27988054 is a deficient number, since it is larger than the sum of its proper divisors (14569346).

27988054 is a wasteful number, since it uses less digits than its factorization.

27988054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191774.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 27988054 is about 5290.3737108072. The cubic root of 27988054 is about 303.6157064115.

The spelling of 27988054 in words is "twenty-seven million, nine hundred eighty-eight thousand, fifty-four".

Divisors: 1 2 73 146 191699 383398 13994027 27988054