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27804030684 = 22319121947503
BaseRepresentation
bin11001111001001111…
…111101011011011100
32122202201012002210020
4121321033331123130
5423420312440214
620434544512140
72003003234643
oct317117753334
978681162706
1027804030684
1110878717861
12547b61b650
132811445281
1414ba93a35a
15acae564a9
hex6793fd6dc

27804030684 has 24 divisors (see below), whose sum is σ = 68290602240. Its totient is φ = 8780220144.

The previous prime is 27804030623. The next prime is 27804030739. The reversal of 27804030684 is 48603040872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60973524 + ... + 60973979.

It is an arithmetic number, because the mean of its divisors is an integer number (2845441760).

Almost surely, 227804030684 is an apocalyptic number.

It is an amenable number.

27804030684 is an abundant number, since it is smaller than the sum of its proper divisors (40486571556).

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

27804030684 is a wasteful number, since it uses less digits than its factorization.

27804030684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121947529 (or 121947527 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 27804030684 in words is "twenty-seven billion, eight hundred four million, thirty thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 121947503 243895006 365842509 487790012 731685018 1463370036 2317002557 4634005114 6951007671 9268010228 13902015342 27804030684