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28304104306 = 267379557321
BaseRepresentation
bin11010010111000011…
…100101101101110010
32201001120011110211111
4122113003211231302
5430431322314211
621000331103534
72021254626352
oct322703455562
981046143744
1028304104306
1111004a24545
12559aba1baa
132890c24a1a
141527110b62
15b09cd6421
hex6970e5b72

28304104306 has 16 divisors (see below), whose sum is σ = 43203601440. Its totient is φ = 13904019360.

The previous prime is 28304104289. The next prime is 28304104331. The reversal of 28304104306 is 60340140382.

It is a super-2 number, since 2×283041043062 (a number of 22 digits) contains 22 as substring.

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, 227875 + ... + 329446.

It is an arithmetic number, because the mean of its divisors is an integer number (2700225090).

Almost surely, 228304104306 is an apocalyptic number.

28304104306 is a deficient number, since it is larger than the sum of its proper divisors (14899497134).

28304104306 is a wasteful number, since it uses less digits than its factorization.

28304104306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557769.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 28304104306 its reverse (60340140382), we get a palindrome (88644244688).

The spelling of 28304104306 in words is "twenty-eight billion, three hundred four million, one hundred four thousand, three hundred six".

Divisors: 1 2 67 134 379 758 25393 50786 557321 1114642 37340507 74681014 211224659 422449318 14152052153 28304104306