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687034914 = 23162170639
BaseRepresentation
bin101000111100110…
…101001000100010
31202212202222201120
4220330311020202
52401340104124
6152101313110
723011462146
oct5074651042
91685688646
10687034914
113228a4555
12172105796
13ac450047
1467361226
15404b0d79
hex28f35222

687034914 has 16 divisors (see below), whose sum is σ = 1374936960. Its totient is φ = 228867120.

The previous prime is 687034891. The next prime is 687034961. The reversal of 687034914 is 419430786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25594 + ... + 45045.

It is an arithmetic number, because the mean of its divisors is an integer number (85933560).

Almost surely, 2687034914 is an apocalyptic number.

687034914 is an abundant number, since it is smaller than the sum of its proper divisors (687902046).

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

687034914 is a wasteful number, since it uses less digits than its factorization.

687034914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72265.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 687034914 is about 26211.3508617927. The cubic root of 687034914 is about 882.3880188653.

The spelling of 687034914 in words is "six hundred eighty-seven million, thirty-four thousand, nine hundred fourteen".

Divisors: 1 2 3 6 1621 3242 4863 9726 70639 141278 211917 423834 114505819 229011638 343517457 687034914