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687055353 = 3474872733
BaseRepresentation
bin101000111100111…
…010000111111001
31202212211000202120
4220330322013321
52401341232403
6152101551453
723011605555
oct5074720771
91685730676
10687055353
11322908946
12172115589
13ac45943a
1467368865
15404b6e53
hex28f3a1f9

687055353 has 8 divisors (see below), whose sum is σ = 935564928. Its totient is φ = 448291344.

The previous prime is 687055351. The next prime is 687055363. The reversal of 687055353 is 353550786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 687055353 - 21 = 687055351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687055351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436226 + ... + 2436507.

It is an arithmetic number, because the mean of its divisors is an integer number (116945616).

Almost surely, 2687055353 is an apocalyptic number.

It is an amenable number.

687055353 is a deficient number, since it is larger than the sum of its proper divisors (248509575).

687055353 is a wasteful number, since it uses less digits than its factorization.

687055353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872783.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 687055353 is about 26211.7407472300. The cubic root of 687055353 is about 882.3967690028.

The spelling of 687055353 in words is "six hundred eighty-seven million, fifty-five thousand, three hundred fifty-three".

Divisors: 1 3 47 141 4872733 14618199 229018451 687055353