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28752866276 = 2210965946941
BaseRepresentation
bin11010110001110011…
…011110101111100100
32202012211120221112012
4122301303132233210
5432341213210101
621113041413352
72035344221321
oct326163365744
982184527465
1028752866276
1111215275002
1256a533a258
132932baa054
14156a969b48
15b343ccbbb
hex6b1cdebe4

28752866276 has 12 divisors (see below), whose sum is σ = 50779145340. Its totient is φ = 14244539040.

The previous prime is 28752866273. The next prime is 28752866281. The reversal of 28752866276 is 67266825782.

It can be written as a sum of positive squares in 2 ways, for example, as 10467336100 + 18285530176 = 102310^2 + 135224^2 .

It is not an unprimeable number, because it can be changed into a prime (28752866273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32973035 + ... + 32973906.

It is an arithmetic number, because the mean of its divisors is an integer number (4231595445).

Almost surely, 228752866276 is an apocalyptic number.

It is an amenable number.

28752866276 is a deficient number, since it is larger than the sum of its proper divisors (22026279064).

28752866276 is a wasteful number, since it uses less digits than its factorization.

28752866276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65947054 (or 65947052 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 59.

The spelling of 28752866276 in words is "twenty-eight billion, seven hundred fifty-two million, eight hundred sixty-six thousand, two hundred seventy-six".

Divisors: 1 2 4 109 218 436 65946941 131893882 263787764 7188216569 14376433138 28752866276