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680837331676 = 22199855323281
BaseRepresentation
bin10011110100001010001…
…00010011101011011100
32102002100201112222121111
421322011010103223130
542123323324103201
61240434454511404
7100121532555565
oct11720504235334
92362321488544
10680837331676
11242817a19327
12abb4b065564
134c2833b6348
1424d4a30516c
1512a9bad9b51
hex9e85113adc

680837331676 has 12 divisors (see below), whose sum is σ = 1197452594800. Its totient is φ = 338708018880.

The previous prime is 680837331659. The next prime is 680837331679. The reversal of 680837331676 is 676133738086.

It is a happy number.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 680837331676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680837331679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427660845 + ... + 427662436.

Almost surely, 2680837331676 is an apocalyptic number.

It is an amenable number.

680837331676 is a deficient number, since it is larger than the sum of its proper divisors (516615263124).

680837331676 is a wasteful number, since it uses less digits than its factorization.

680837331676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855323484 (or 855323482 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 680837331676 in words is "six hundred eighty billion, eight hundred thirty-seven million, three hundred thirty-one thousand, six hundred seventy-six".

Divisors: 1 2 4 199 398 796 855323281 1710646562 3421293124 170209332919 340418665838 680837331676