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8866072438205 = 5211263112
BaseRepresentation
bin1000000100000100101100…
…0110010010010110111101
31011101120212211110202210212
42001001023012102112331
52130230204021010310
630505003434042205
71603360353164363
oct201011306222675
934346784422725
108866072438205
112909097831764
12bb2379879365
134c40b43a9cc8
14229197b61633
15105960b51205
hex8104b1925bd

8866072438205 has 18 divisors (see below), whose sum is σ = 10691643187134. Its totient is φ = 7058123948400.

The previous prime is 8866072438199. The next prime is 8866072438243. The reversal of 8866072438205 is 5028342706688.

It can be written as a sum of positive squares in only one way, i.e., 7092857950564 + 1773214487641 = 2663242^2 + 1331621^2 .

It is not a de Polignac number, because 8866072438205 - 214 = 8866072421821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1404857000 + ... + 1404863310.

It is an arithmetic number, because the mean of its divisors is an integer number (593980177063).

Almost surely, 28866072438205 is an apocalyptic number.

It is an amenable number.

8866072438205 is a deficient number, since it is larger than the sum of its proper divisors (1825570748929).

8866072438205 is an frugal number, since it uses more digits than its factorization.

8866072438205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13049 (or 6527 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 59.

The spelling of 8866072438205 in words is "eight trillion, eight hundred sixty-six billion, seventy-two million, four hundred thirty-eight thousand, two hundred five".

Divisors: 1 5 211 1055 6311 31555 44521 222605 1331621 6658105 39828721 199143605 280972031 1404860155 8403860131 42019300655 1773214487641 8866072438205