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28027530053 = 136651205103
BaseRepresentation
bin11010000110100100…
…100010101101000101
32200100021202001021122
4122012210202231011
5424400021430203
620513051123325
72011356034415
oct320644425505
980307661248
1028027530053
11109828a0186
125522443545
132848839713
1414dc4b8645
15ae08a3538
hex686922b45

28027530053 has 4 divisors (see below), whose sum is σ = 28027871808. Its totient is φ = 28027188300.

The previous prime is 28027530017. The next prime is 28027530067. The reversal of 28027530053 is 35003572082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28027530053 - 218 = 28027267909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28027529995 and 28027530022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28027530253) 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, 34100 + ... + 239202.

It is an arithmetic number, because the mean of its divisors is an integer number (7006967952).

Almost surely, 228027530053 is an apocalyptic number.

It is an amenable number.

28027530053 is a deficient number, since it is larger than the sum of its proper divisors (341755).

28027530053 is a wasteful number, since it uses less digits than its factorization.

28027530053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341754.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 28027530053 in words is "twenty-eight billion, twenty-seven million, five hundred thirty thousand, fifty-three".

Divisors: 1 136651 205103 28027530053