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218060906771 = 17181212933287
BaseRepresentation
bin1100101100010101110…
…0010110000100010011
3202211212001001210220102
43023011130112010103
512033042043004041
6244101550003015
721516516060611
oct3130534260423
9684761053812
10218060906771
118452a773834
12363181a646b
1317742056366
14a7a8a446b1
155a13d5e09b
hex32c5716113

218060906771 has 16 divisors (see below), whose sum is σ = 232279669440. Its totient is φ = 203997911040.

The previous prime is 218060906731. The next prime is 218060906809. The reversal of 218060906771 is 177609060812.

It is a de Polignac number, because none of the positive numbers 2k-218060906771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218060906731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6534290 + ... + 6567576.

It is an arithmetic number, because the mean of its divisors is an integer number (14517479340).

Almost surely, 2218060906771 is an apocalyptic number.

218060906771 is a deficient number, since it is larger than the sum of its proper divisors (14218762669).

218060906771 is a wasteful number, since it uses less digits than its factorization.

218060906771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35614.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 218060906771 in words is "two hundred eighteen billion, sixty million, nine hundred six thousand, seven hundred seventy-one".

Divisors: 1 17 181 2129 3077 33287 36193 385349 565879 6024947 6550933 70868023 102424099 1204756391 12827112163 218060906771