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27868926408 = 2331161205267
BaseRepresentation
bin11001111101000111…
…100001000111001000
32122221020022010222120
4121331013201013020
5424033421121113
620445223451240
72004421652211
oct317507410710
978836263876
1027868926408
1110901311994
1254992b6b20
132821a176cb
1414c53d0408
15ad19c4a23
hex67d1e11c8

27868926408 has 16 divisors (see below), whose sum is σ = 69672316080. Its totient is φ = 9289642128.

The previous prime is 27868926391. The next prime is 27868926409. The reversal of 27868926408 is 80462986872.

It is not an unprimeable number, because it can be changed into a prime (27868926409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580602610 + ... + 580602657.

It is an arithmetic number, because the mean of its divisors is an integer number (4354519755).

Almost surely, 227868926408 is an apocalyptic number.

It is an amenable number.

27868926408 is an abundant number, since it is smaller than the sum of its proper divisors (41803389672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27868926408 is a wasteful number, since it uses less digits than its factorization.

27868926408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161205276 (or 1161205272 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 27868926408 in words is "twenty-seven billion, eight hundred sixty-eight million, nine hundred twenty-six thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 24 1161205267 2322410534 3483615801 4644821068 6967231602 9289642136 13934463204 27868926408