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65023680378 = 2324329445447
BaseRepresentation
bin111100100011101101…
…101001111101111010
320012211121112012200110
4330203231221331322
52031132030233003
645512123045150
74461230110116
oct744355517572
9205747465613
1065023680378
1125638199528
12107283707b6
13619348a427
14320bb5a746
151a587d5a03
hexf23b69f7a

65023680378 has 16 divisors (see below), whose sum is σ = 130052998080. Its totient is φ = 21673620576.

The previous prime is 65023680377. The next prime is 65023680391. The reversal of 65023680378 is 87308632056.

It is not an unprimeable number, because it can be changed into a prime (65023680377) by changing a digit.

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, 76750 + ... + 368697.

It is an arithmetic number, because the mean of its divisors is an integer number (8128312380).

Almost surely, 265023680378 is an apocalyptic number.

65023680378 is an abundant number, since it is smaller than the sum of its proper divisors (65029317702).

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

65023680378 is a wasteful number, since it uses less digits than its factorization.

65023680378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469781.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 65023680378 in words is "sixty-five billion, twenty-three million, six hundred eighty thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 24329 48658 72987 145974 445447 890894 1336341 2672682 10837280063 21674560126 32511840189 65023680378