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12987104754 = 2313166501343
BaseRepresentation
bin11000001100001011…
…10111110111110010
31020112002112021111210
430012011313313302
5203044144323004
65544410420550
7636555366111
oct140605676762
936462467453
1012987104754
115564978028
122625431756
1312bc808390
148b2b6dc78
15510256089
hex306177df2

12987104754 has 16 divisors (see below), whose sum is σ = 27972225792. Its totient is φ = 3996032208.

The previous prime is 12987104737. The next prime is 12987104759. The reversal of 12987104754 is 45740178921.

It is not an unprimeable number, because it can be changed into a prime (12987104759) 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, 83250594 + ... + 83250749.

It is an arithmetic number, because the mean of its divisors is an integer number (1748264112).

Almost surely, 212987104754 is an apocalyptic number.

12987104754 is an abundant number, since it is smaller than the sum of its proper divisors (14985121038).

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

12987104754 is a wasteful number, since it uses less digits than its factorization.

12987104754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166501361.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 12987104754 in words is "twelve billion, nine hundred eighty-seven million, one hundred four thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 78 166501343 333002686 499504029 999008058 2164517459 4329034918 6493552377 12987104754