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17948414868 = 2231495701239
BaseRepresentation
bin10000101101110011…
…110001001110010100
31201022212002221112020
4100231303301032110
5243224243233433
612125000453140
71203531003066
oct205563611624
951285087466
1017948414868
11768045981a
12358aa7a1b0
13190063b837
14c23a3d736
15700ab8cb3
hex42dcf1394

17948414868 has 12 divisors (see below), whose sum is σ = 41879634720. Its totient is φ = 5982804952.

The previous prime is 17948414867. The next prime is 17948414873. The reversal of 17948414868 is 86841484971.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17948414867) 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, 747850608 + ... + 747850631.

It is an arithmetic number, because the mean of its divisors is an integer number (3489969560).

Almost surely, 217948414868 is an apocalyptic number.

It is an amenable number.

17948414868 is an abundant number, since it is smaller than the sum of its proper divisors (23931219852).

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

17948414868 is a wasteful number, since it uses less digits than its factorization.

17948414868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495701246 (or 1495701244 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 60.

The spelling of 17948414868 in words is "seventeen billion, nine hundred forty-eight million, four hundred fourteen thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1495701239 2991402478 4487103717 5982804956 8974207434 17948414868