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27668168 = 231159732
BaseRepresentation
bin110100110001…
…0111011001000
31221001200120222
41221202323020
524040340133
62425005212
7454114133
oct151427310
957050528
1027668168
1114688560
129323808
1359697c8
14396321a
152667e98
hex1a62ec8

27668168 has 48 divisors (see below), whose sum is σ = 58352400. Its totient is φ = 12193920.

The previous prime is 27668141. The next prime is 27668171. The reversal of 27668168 is 86186672.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378980 + ... + 379052.

It is an arithmetic number, because the mean of its divisors is an integer number (1215675).

Almost surely, 227668168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27668168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29176200).

27668168 is an abundant number, since it is smaller than the sum of its proper divisors (30684232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27668168 is a wasteful number, since it uses less digits than its factorization.

27668168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 145 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 27668168 is about 5260.0539921183. The cubic root of 27668168 is about 302.4545586638.

The spelling of 27668168 in words is "twenty-seven million, six hundred sixty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 59 73 88 118 146 236 292 472 584 649 803 1298 1606 2596 3212 4307 5192 5329 6424 8614 10658 17228 21316 34456 42632 47377 58619 94754 117238 189508 234476 314411 379016 468952 628822 1257644 2515288 3458521 6917042 13834084 27668168