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8289460985 = 513297110103
BaseRepresentation
bin1111011100001011…
…10010001011111001
3210101201002020201112
413232011302023321
5113434100222420
63450315530105
7412264153511
oct75605621371
923351066645
108289460985
113574203803
121734159935
13a214c0c00
14588cd6841
15337b268c5
hex1ee1722f9

8289460985 has 24 divisors (see below), whose sum is σ = 10783554624. Its totient is φ = 6114538560.

The previous prime is 8289460957. The next prime is 8289461003. The reversal of 8289460985 is 5890649828.

It is not a de Polignac number, because 8289460985 - 220 = 8288412409 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 815444 + ... + 825546.

It is an arithmetic number, because the mean of its divisors is an integer number (449314776).

Almost surely, 28289460985 is an apocalyptic number.

It is an amenable number.

8289460985 is a deficient number, since it is larger than the sum of its proper divisors (2494093639).

8289460985 is a wasteful number, since it uses less digits than its factorization.

8289460985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105 (or 11092 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 59.

The square root of 8289460985 is about 91046.4770597962. The cubic root of 8289460985 is about 2023.8365300474.

The spelling of 8289460985 in words is "eight billion, two hundred eighty-nine million, four hundred sixty thousand, nine hundred eighty-five".

Divisors: 1 5 13 65 169 845 971 4855 10103 12623 50515 63115 131339 164099 656695 820495 1707407 8537035 9810013 49050065 127530169 637650845 1657892197 8289460985