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688343486 = 2379301939
BaseRepresentation
bin101001000001110…
…100100110111110
31202222020110202012
4221001310212332
52402203442421
6152145331222
723025552215
oct5101644676
91688213665
10688343486
11323608716
12172636b12
13ac7ba84c
14675c207c
154066d95b
hex290749be

688343486 has 8 divisors (see below), whose sum is σ = 1060421160. Its totient is φ = 334869768.

The previous prime is 688343473. The next prime is 688343497. The reversal of 688343486 is 684343886.

688343486 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 Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4650896 + ... + 4651043.

It is an arithmetic number, because the mean of its divisors is an integer number (132552645).

Almost surely, 2688343486 is an apocalyptic number.

688343486 is a deficient number, since it is larger than the sum of its proper divisors (372077674).

688343486 is a wasteful number, since it uses less digits than its factorization.

688343486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9301978.

The product of its digits is 2654208, while the sum is 50.

The square root of 688343486 is about 26236.3009206710. The cubic root of 688343486 is about 882.9478817001.

The spelling of 688343486 in words is "six hundred eighty-eight million, three hundred forty-three thousand, four hundred eighty-six".

Divisors: 1 2 37 74 9301939 18603878 344171743 688343486