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64050668502 = 23231895924481
BaseRepresentation
bin111011101001101101…
…111010001111010110
320010022210122002022120
4323221231322033112
52022133432343002
645231404040410
74425143461602
oct735155721726
9203283562276
1064050668502
1125188a29287
12104b6533106
136069a0c362
143158836502
1519ed185cbc
hexee9b7a3d6

64050668502 has 32 divisors (see below), whose sum is σ = 133683471360. Its totient is φ = 20420040960.

The previous prime is 64050668497. The next prime is 64050668519. The reversal of 64050668502 is 20586605046.

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 15 ways as a sum of consecutive naturals, for example, 2604102 + ... + 2628582.

It is an arithmetic number, because the mean of its divisors is an integer number (4177608480).

Almost surely, 264050668502 is an apocalyptic number.

64050668502 is an abundant number, since it is smaller than the sum of its proper divisors (69632802858).

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

64050668502 is a wasteful number, since it uses less digits than its factorization.

64050668502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43468.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 64050668502 in words is "sixty-four billion, fifty million, six hundred sixty-eight thousand, five hundred two".

Divisors: 1 2 3 6 23 46 69 138 18959 24481 37918 48962 56877 73443 113754 146886 436057 563063 872114 1126126 1308171 1689189 2616342 3378378 464135279 928270558 1392405837 2784811674 10675111417 21350222834 32025334251 64050668502