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688107141634 = 211293106749479
BaseRepresentation
bin10100000001101100110…
…00011011101000000010
32102210010100222121002011
422000312120123220002
542233220412013014
61244040112043134
7100466636125033
oct12006630335002
92383110877064
10688107141634
112459085a7130
12b14398334aa
134cb71579743
1425439a16a8a
1512d74e4c7c4
hexa03661ba02

688107141634 has 16 divisors (see below), whose sum is σ = 1129836496320. Its totient is φ = 311708475760.

The previous prime is 688107141583. The next prime is 688107141643. The reversal of 688107141634 is 436141701886.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53368294 + ... + 53381185.

It is an arithmetic number, because the mean of its divisors is an integer number (70614781020).

Almost surely, 2688107141634 is an apocalyptic number.

688107141634 is a deficient number, since it is larger than the sum of its proper divisors (441729354686).

688107141634 is a wasteful number, since it uses less digits than its factorization.

688107141634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106749785.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 688107141634 in words is "six hundred eighty-eight billion, one hundred seven million, one hundred forty-one thousand, six hundred thirty-four".

Divisors: 1 2 11 22 293 586 3223 6446 106749479 213498958 1174244269 2348488538 31277597347 62555194694 344053570817 688107141634