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56680949878 = 2731243753591
BaseRepresentation
bin110100110010011100…
…101010100001110110
312102022012012120220221
4310302130222201312
51412040310344003
642012221244554
74044415060510
oct646234524166
9172265176827
1056680949878
1122046a11633
12ab9a40375a
135463c37bc7
142a59b58bb0
15171b18a7bd
hexd3272a876

56680949878 has 32 divisors (see below), whose sum is σ = 100344803328. Its totient is φ = 23498143200.

The previous prime is 56680949869. The next prime is 56680949911. The reversal of 56680949878 is 87894908665.

56680949878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030863 + ... + 1084453.

It is an arithmetic number, because the mean of its divisors is an integer number (3135775104).

Almost surely, 256680949878 is an apocalyptic number.

56680949878 is a deficient number, since it is larger than the sum of its proper divisors (43663853450).

56680949878 is a wasteful number, since it uses less digits than its factorization.

56680949878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56068.

The product of its (nonzero) digits is 209018880, while the sum is 70.

The spelling of 56680949878 in words is "fifty-six billion, six hundred eighty million, nine hundred forty-nine thousand, eight hundred seventy-eight".

Divisors: 1 2 7 14 31 62 217 434 2437 4874 17059 34118 53591 75547 107182 151094 375137 528829 750274 1057658 1661321 3322642 11629247 23258494 130601267 261202534 914208869 1828417738 4048639277 8097278554 28340474939 56680949878