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66013054 = 283547727
BaseRepresentation
bin1111101111010…
…0011101111110
311121012210212221
43323310131332
5113344404204
610314515554
71431046612
oct373643576
9147183787
1066013054
1134298648
121a135bba
13108a3ba3
148aa5342
155bde654
hex3ef477e

66013054 has 16 divisors (see below), whose sum is σ = 100533888. Its totient is φ = 32504472.

The previous prime is 66013007. The next prime is 66013061. The reversal of 66013054 is 45031066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90439 + ... + 91165.

It is an arithmetic number, because the mean of its divisors is an integer number (6283368).

Almost surely, 266013054 is an apocalyptic number.

66013054 is a deficient number, since it is larger than the sum of its proper divisors (34520834).

66013054 is a wasteful number, since it uses less digits than its factorization.

66013054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66013054 is about 8124.8417830749. The cubic root of 66013054 is about 404.1506439155.

The spelling of 66013054 in words is "sixty-six million, thirteen thousand, fifty-four".

Divisors: 1 2 83 166 547 727 1094 1454 45401 60341 90802 120682 397669 795338 33006527 66013054