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1306028 = 22794133
BaseRepresentation
bin100111110110110101100
32110100112102
410332312230
5313243103
643554232
714046443
oct4766654
92410472
101306028
11812269
1252b978
133695c9
1425dd5a
151abe88
hex13edac

1306028 has 12 divisors (see below), whose sum is σ = 2315040. Its totient is φ = 644592.

The previous prime is 1306027. The next prime is 1306033. The reversal of 1306028 is 8206031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306027) 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 3 ways as a sum of consecutive naturals, for example, 1751 + ... + 2382.

It is an arithmetic number, because the mean of its divisors is an integer number (192920).

21306028 is an apocalyptic number.

It is an amenable number.

1306028 is a deficient number, since it is larger than the sum of its proper divisors (1009012).

1306028 is a wasteful number, since it uses less digits than its factorization.

1306028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216 (or 4214 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1306028 is about 1142.8158206815. The cubic root of 1306028 is about 109.3077184028.

The spelling of 1306028 in words is "one million, three hundred six thousand, twenty-eight".

Divisors: 1 2 4 79 158 316 4133 8266 16532 326507 653014 1306028