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BaseRepresentation
bin101000111110111…
…111010111110110
31202220211202102222
4220332333113312
52402011214032
6152121402342
723016341024
oct5076772766
91686752388
10687601142
11323150a08
121723393b2
13ac5ba9a7
146746b714
1540573a12
hex28fbf5f6

687601142 has 16 divisors (see below), whose sum is σ = 1127302272. Its totient is φ = 313138560.

The previous prime is 687601141. The next prime is 687601151. The reversal of 687601142 is 241106786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687601141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325133 + ... + 327240.

It is an arithmetic number, because the mean of its divisors is an integer number (70456392).

Almost surely, 2687601142 is an apocalyptic number.

687601142 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

687601142 is a deficient number, since it is larger than the sum of its proper divisors (439701130).

687601142 is a wasteful number, since it uses less digits than its factorization.

687601142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652423.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 687601142 is about 26222.1498355875. The cubic root of 687601142 is about 882.6303624961.

The spelling of 687601142 in words is "six hundred eighty-seven million, six hundred one thousand, one hundred forty-two".