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687413058 = 23913712539
BaseRepresentation
bin101000111110010…
…001011101000010
31202220111012102220
4220332101131002
52401434204213
6152113351510
723014625463
oct5076213502
91686435386
10687413058
11323032672
12172268596
13ac5531b7
146741cd6a
1540537e23
hex28f91742

687413058 has 16 divisors (see below), whose sum is σ = 1375086240. Its totient is φ = 229094336.

The previous prime is 687413033. The next prime is 687413059. The reversal of 687413058 is 850314786.

It is a super-3 number, since 3×6874130583 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (687413059) 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, 48553 + ... + 61091.

It is an arithmetic number, because the mean of its divisors is an integer number (85942890).

Almost surely, 2687413058 is an apocalyptic number.

687413058 is an abundant number, since it is smaller than the sum of its proper divisors (687673182).

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

687413058 is a wasteful number, since it uses less digits than its factorization.

687413058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21681.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 687413058 is about 26218.5632329462. The cubic root of 687413058 is about 882.5498779546.

The spelling of 687413058 in words is "six hundred eighty-seven million, four hundred thirteen thousand, fifty-eight".

Divisors: 1 2 3 6 9137 12539 18274 25078 27411 37617 54822 75234 114568843 229137686 343706529 687413058