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28014176289 = 31119257173851
BaseRepresentation
bin11010000101110001…
…100110100000100001
32200022100121121100210
4122011301212200201
5424333112120124
620511453004333
72011134366231
oct320561464041
980270547323
1028014176289
11109762aa310
125519a836a9
132845b42498
1414da7ddcc1
15ade616a29
hex685c66821

28014176289 has 32 divisors (see below), whose sum is σ = 43059663360. Its totient is φ = 16022016000.

The previous prime is 28014176279. The next prime is 28014176293. The reversal of 28014176289 is 98267141082.

It is a happy number.

It is not a de Polignac number, because 28014176289 - 211 = 28014174241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28014176279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74214 + ... + 248064.

It is an arithmetic number, because the mean of its divisors is an integer number (1345614480).

Almost surely, 228014176289 is an apocalyptic number.

It is an amenable number.

28014176289 is a deficient number, since it is larger than the sum of its proper divisors (15045487071).

28014176289 is a wasteful number, since it uses less digits than its factorization.

28014176289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174141.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 28014176289 in words is "twenty-eight billion, fourteen million, one hundred seventy-six thousand, two hundred eighty-nine".

Divisors: 1 3 11 19 33 57 209 257 627 771 2827 4883 8481 14649 53713 161139 173851 521553 1912361 3303169 5737083 9909507 36334859 44679707 109004577 134039121 491476777 848914433 1474430331 2546743299 9338058763 28014176289