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687260485 = 5287947743
BaseRepresentation
bin101000111101101…
…100001101000101
31202220012110011001
4220331230031011
52401414313420
6152110213301
723013421612
oct5075541505
91686173131
10687260485
11322a38a7a
121721b4231
13ac4cb912
14673bd509
1540507b0a
hex28f6c345

687260485 has 8 divisors (see below), whose sum is σ = 825016320. Its totient is φ = 549605904.

The previous prime is 687260477. The next prime is 687260489. The reversal of 687260485 is 584062786.

687260485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 687260485 - 23 = 687260477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687260489) 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, 9477 + ... + 38266.

It is an arithmetic number, because the mean of its divisors is an integer number (103127040).

Almost surely, 2687260485 is an apocalyptic number.

It is an amenable number.

687260485 is a deficient number, since it is larger than the sum of its proper divisors (137755835).

687260485 is a wasteful number, since it uses less digits than its factorization.

687260485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50627.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 687260485 is about 26215.6534345417. The cubic root of 687260485 is about 882.4845784260.

The spelling of 687260485 in words is "six hundred eighty-seven million, two hundred sixty thousand, four hundred eighty-five".

Divisors: 1 5 2879 14395 47743 238715 137452097 687260485