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18807108266012 = 22111725143192869
BaseRepresentation
bin1000100011010110111110…
…00000011110100000011100
32110120221102201012201111212
410101223133000132200130
54431113424204003022
6103555511040203552
73650524450415303
oct421533700364034
973527381181455
1018807108266012
115aa1060352460
122138b3a6095b8
13a6566c57acc1
144903a9bd343a
1522933924d3e2
hex111adf01e81c

18807108266012 has 24 divisors (see below), whose sum is σ = 38016507619440. Its totient is φ = 8045821717760.

The previous prime is 18807108266003. The next prime is 18807108266021. The reversal of 18807108266012 is 21066280170881.

It is an interprime number because it is at equal distance from previous prime (18807108266003) and next prime (18807108266021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12571595687 + ... + 12571597182.

It is an arithmetic number, because the mean of its divisors is an integer number (1584021150810).

Almost surely, 218807108266012 is an apocalyptic number.

It is an amenable number.

18807108266012 is an abundant number, since it is smaller than the sum of its proper divisors (19209399353428).

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

18807108266012 is a wasteful number, since it uses less digits than its factorization.

18807108266012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25143192901 (or 25143192899 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 18807108266012 in words is "eighteen trillion, eight hundred seven billion, one hundred eight million, two hundred sixty-six thousand, twelve".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 25143192869 50286385738 100572771476 276575121559 427434278773 553150243118 854868557546 1106300486236 1709737115092 4701777066503 9403554133006 18807108266012