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BaseRepresentation
bin101000111110111…
…111010110110010
31202220211202100110
4220332333112302
52402011213244
6152121402150
723016340566
oct5076772662
91686752313
10687601074
11323150956
12172339356
13ac5ba954
146746b6a6
15405739b9
hex28fbf5b2

687601074 has 32 divisors (see below), whose sum is σ = 1457225856. Its totient is φ = 215550720.

The previous prime is 687601073. The next prime is 687601097. The reversal of 687601074 is 470106786.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (687601073) 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 15 ways as a sum of consecutive naturals, for example, 234264 + ... + 237180.

It is an arithmetic number, because the mean of its divisors is an integer number (45538308).

Almost surely, 2687601074 is an apocalyptic number.

687601074 is an abundant number, since it is smaller than the sum of its proper divisors (769624782).

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

687601074 is a wasteful number, since it uses less digits than its factorization.

687601074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 687601074 is about 26222.1485389737. The cubic root of 687601074 is about 882.6303334003.

The spelling of 687601074 in words is "six hundred eighty-seven million, six hundred one thousand, seventy-four".