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28080243027 = 34346669667
BaseRepresentation
bin11010001001101101…
…101000000101010011
32200110221221010220000
4122021231220011103
5430002020234102
620522213021043
72012566061514
oct321155500523
980427833800
1028080243027
11109aa624221
125538024783
132856734925
1415054baa0b
15ae531701c
hex689b68153

28080243027 has 10 divisors (see below), whose sum is σ = 41947029828. Its totient is φ = 18720161964.

The previous prime is 28080243011. The next prime is 28080243031. The reversal of 28080243027 is 72034208082.

It is not a de Polignac number, because 28080243027 - 24 = 28080243011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28080242982 and 28080243000.

It is not an unprimeable number, because it can be changed into a prime (28080243067) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 173334753 + ... + 173334914.

Almost surely, 228080243027 is an apocalyptic number.

28080243027 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28080243027 is a deficient number, since it is larger than the sum of its proper divisors (13866786801).

28080243027 is an equidigital number, since it uses as much as digits as its factorization.

28080243027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346669679 (or 346669670 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 28080243027 in words is "twenty-eight billion, eighty million, two hundred forty-three thousand, twenty-seven".

Divisors: 1 3 9 27 81 346669667 1040009001 3120027003 9360081009 28080243027