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56729026826 = 2171987815831
BaseRepresentation
bin110100110101010100…
…000100000100001010
312102102112200011002122
4310311110010010022
51412140112324301
642021055531242
74045540525523
oct646524040412
9172375604078
1056729026826
112207106954a
12abb2529b22
135470b9bbc4
142a622b184a
1517204d581b
hexd3550410a

56729026826 has 16 divisors (see below), whose sum is σ = 94841098560. Its totient is φ = 25290959040.

The previous prime is 56729026819. The next prime is 56729026859. The reversal of 56729026826 is 62862092765.

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, 43907270 + ... + 43908561.

It is an arithmetic number, because the mean of its divisors is an integer number (5927568660).

Almost surely, 256729026826 is an apocalyptic number.

56729026826 is a deficient number, since it is larger than the sum of its proper divisors (38112071734).

56729026826 is a wasteful number, since it uses less digits than its factorization.

56729026826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87815869.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 56729026826 in words is "fifty-six billion, seven hundred twenty-nine million, twenty-six thousand, eight hundred twenty-six".

Divisors: 1 2 17 19 34 38 323 646 87815831 175631662 1492869127 1668500789 2985738254 3337001578 28364513413 56729026826