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8085285520557 = 371722647858601
BaseRepresentation
bin111010110101000000010…
…0100100100010010101101
31001121221112110010201222220
41311222000210210102231
52024432131043124212
625110155012425553
71463066624660610
oct165520044442255
931557473121886
108085285520557
112637a4a991123
12aa6b959182b9
13468592a85c1b
141dd4893a0177
15e04b448938c
hex75a809244ad

8085285520557 has 16 divisors (see below), whose sum is σ = 13045166554752. Its totient is φ = 4348388851200.

The previous prime is 8085285520519. The next prime is 8085285520579. The reversal of 8085285520557 is 7550255825808.

It is not a de Polignac number, because 8085285520557 - 212 = 8085285516461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8085285520557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8085285520517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11323928944 + ... + 11323929657.

It is an arithmetic number, because the mean of its divisors is an integer number (815322909672).

Almost surely, 28085285520557 is an apocalyptic number.

It is an amenable number.

8085285520557 is a deficient number, since it is larger than the sum of its proper divisors (4959881034195).

8085285520557 is a wasteful number, since it uses less digits than its factorization.

8085285520557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22647858628.

The product of its (nonzero) digits is 44800000, while the sum is 60.

The spelling of 8085285520557 in words is "eight trillion, eighty-five billion, two hundred eighty-five million, five hundred twenty thousand, five hundred fifty-seven".

Divisors: 1 3 7 17 21 51 119 357 22647858601 67943575803 158535010207 385013596217 475605030621 1155040788651 2695095173519 8085285520557