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56805050865 = 3537216147363
BaseRepresentation
bin110100111001110110…
…000100100111110001
312102121211201120110210
4310321312010213301
51412314043111430
642032413214333
74050452652123
oct647166044761
9172554646423
1056805050865
11220aaa74532
12b013a913a9
135483869644
142a6c421213
1517270012b0
hexd39d849f1

56805050865 has 32 divisors (see below), whose sum is σ = 93389682816. Its totient is φ = 29462952960.

The previous prime is 56805050839. The next prime is 56805050879.

56805050865 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56805050865 - 212 = 56805046769 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1175674 + ... + 1223036.

It is an arithmetic number, because the mean of its divisors is an integer number (2918427588).

Almost surely, 256805050865 is an apocalyptic number.

It is an amenable number.

56805050865 is a deficient number, since it is larger than the sum of its proper divisors (36584631951).

56805050865 is a wasteful number, since it uses less digits than its factorization.

56805050865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49569.

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 56805050865 in words is "fifty-six billion, eight hundred five million, fifty thousand, eight hundred sixty-five".

Divisors: 1 3 5 15 37 111 185 555 2161 6483 10805 32415 47363 79957 142089 236815 239871 399785 710445 1199355 1752431 5257293 8762155 26286465 102351443 307054329 511757215 1535271645 3787003391 11361010173 18935016955 56805050865