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271668887 = 7216013463
BaseRepresentation
bin10000001100010…
…101011010010111
3200221012012122122
4100030111122113
51024021401022
642542450155
76506101400
oct2014253227
9627165578
10271668887
1112a393946
1276b9395b
134438b629
142811a9a7
1518cb4742
hex10315697

271668887 has 12 divisors (see below), whose sum is σ = 316311696. Its totient is φ = 232646400.

The previous prime is 271668871. The next prime is 271668889. The reversal of 271668887 is 788866172.

It is a happy number.

It is not a de Polignac number, because 271668887 - 24 = 271668871 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 (271668889) 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 11 ways as a sum of consecutive naturals, for example, 76718 + ... + 80180.

It is an arithmetic number, because the mean of its divisors is an integer number (26359308).

Almost surely, 2271668887 is an apocalyptic number.

271668887 is a deficient number, since it is larger than the sum of its proper divisors (44642809).

271668887 is a wasteful number, since it uses less digits than its factorization.

271668887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078 (or 5071 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 53.

The square root of 271668887 is about 16482.3811083229. The cubic root of 271668887 is about 647.6593423282.

The spelling of 271668887 in words is "two hundred seventy-one million, six hundred sixty-eight thousand, eight hundred eighty-seven".

Divisors: 1 7 49 1601 3463 11207 24241 78449 169687 5544263 38809841 271668887