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8465040378 = 233156760007
BaseRepresentation
bin1111110001000111…
…00100001111111010
3210211221110121101000
413320203210033322
5114314022243003
63515551105430
7416525441004
oct77043441772
923757417330
108465040378
113654327143
121782b12276
13a4b9a7942
145a435d374
1534825a1a3
hex1f88e43fa

8465040378 has 16 divisors (see below), whose sum is σ = 18811200960. Its totient is φ = 2821680108.

The previous prime is 8465040377. The next prime is 8465040383. The reversal of 8465040378 is 8730405648.

8465040378 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8465040373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78379950 + ... + 78380057.

It is an arithmetic number, because the mean of its divisors is an integer number (1175700060).

Almost surely, 28465040378 is an apocalyptic number.

8465040378 is an abundant number, since it is smaller than the sum of its proper divisors (10346160582).

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

8465040378 is a wasteful number, since it uses less digits than its factorization.

8465040378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156760018 (or 156760012 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 8465040378 is about 92005.6540545199. The cubic root of 8465040378 is about 2038.0258020356.

The spelling of 8465040378 in words is "eight billion, four hundred sixty-five million, forty thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 9 18 27 54 156760007 313520014 470280021 940560042 1410840063 2821680126 4232520189 8465040378