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28927011612 = 22322910526569
BaseRepresentation
bin11010111100001011…
…110010101100011100
32202122222021110000110
4122330023302230130
5433220303332422
621142222130020
72042560353552
oct327413625434
982588243013
1028927011612
11112a45a8a74
125733720910
13295ccb1125
141585b3bbd2
15b4482b60c
hex6bc2f2b1c

28927011612 has 24 divisors (see below), whose sum is σ = 67791110800. Its totient is φ = 9600230016.

The previous prime is 28927011601. The next prime is 28927011637. The reversal of 28927011612 is 21611072982.

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, 5260537 + ... + 5266032.

Almost surely, 228927011612 is an apocalyptic number.

It is an amenable number.

28927011612 is an abundant number, since it is smaller than the sum of its proper divisors (38864099188).

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

28927011612 is a wasteful number, since it uses less digits than its factorization.

28927011612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526805 (or 10526803 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 28927011612 in words is "twenty-eight billion, nine hundred twenty-seven million, eleven thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 229 458 687 916 1374 2748 10526569 21053138 31579707 42106276 63159414 126318828 2410584301 4821168602 7231752903 9642337204 14463505806 28927011612