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28502475068 = 2237752925579
BaseRepresentation
bin11010100010111000…
…010100000100111100
32201120101102202100202
4122202320110010330
5431333113200233
621032134543032
72026214016644
oct324270240474
981511382322
1028502475068
11110a69a4421
125635507a78
1328c305b582
1415455cb524
15b1c41cbe8
hex6a2e1413c

28502475068 has 24 divisors (see below), whose sum is σ = 51236228400. Its totient is φ = 13863685248.

The previous prime is 28502475011. The next prime is 28502475083. The reversal of 28502475068 is 86057420582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101503 + ... + 1127081.

It is an arithmetic number, because the mean of its divisors is an integer number (2134842850).

Almost surely, 228502475068 is an apocalyptic number.

It is an amenable number.

28502475068 is a deficient number, since it is larger than the sum of its proper divisors (22733753332).

28502475068 is a wasteful number, since it uses less digits than its factorization.

28502475068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33149 (or 33147 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 28502475068 in words is "twenty-eight billion, five hundred two million, four hundred seventy-five thousand, sixty-eight".

Divisors: 1 2 4 37 74 148 7529 15058 25579 30116 51158 102316 278573 557146 946423 1114292 1892846 3785692 192584291 385168582 770337164 7125618767 14251237534 28502475068