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28032550005 = 3513687136541
BaseRepresentation
bin11010000110110111…
…101100010001110101
32200100122012002100210
4122012313230101311
5424402313100010
620513350500033
72011446513015
oct320667542165
980318162323
1028032550005
11109857097a9
125524064619
1328498a65c5
1414dd023c45
15ae1045b20
hex686dec475

28032550005 has 16 divisors (see below), whose sum is σ = 44855685504. Its totient is φ = 14949491520.

The previous prime is 28032550003. The next prime is 28032550009. The reversal of 28032550005 is 50005523082.

It is not a de Polignac number, because 28032550005 - 21 = 28032550003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28032550003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 137035 + ... + 273575.

It is an arithmetic number, because the mean of its divisors is an integer number (2803480344).

Almost surely, 228032550005 is an apocalyptic number.

It is an amenable number.

28032550005 is a deficient number, since it is larger than the sum of its proper divisors (16823135499).

28032550005 is a wasteful number, since it uses less digits than its factorization.

28032550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150236.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 28032550005 in words is "twenty-eight billion, thirty-two million, five hundred fifty thousand, five".

Divisors: 1 3 5 15 13687 41061 68435 136541 205305 409623 682705 2048115 1868836667 5606510001 9344183335 28032550005