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8170478485 = 5132331117573
BaseRepresentation
bin1111001101111111…
…11001101110010101
3210002102012022102021
413212333321232111
5113213120302420
63430425413141
7406320630661
oct74677715625
923072168367
108170478485
113513027464
12170033a1b1
13a02962170
145771a38a1
1532c4727aa
hex1e6ff9b95

8170478485 has 32 divisors (see below), whose sum is σ = 11053905408. Its totient is φ = 5752369920.

The previous prime is 8170478471. The next prime is 8170478501. The reversal of 8170478485 is 5848740718.

It is not a de Polignac number, because 8170478485 - 25 = 8170478453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456159 + ... + 473731.

It is an arithmetic number, because the mean of its divisors is an integer number (345434544).

Almost surely, 28170478485 is an apocalyptic number.

It is an amenable number.

8170478485 is a deficient number, since it is larger than the sum of its proper divisors (2883426923).

8170478485 is a wasteful number, since it uses less digits than its factorization.

8170478485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17925.

The product of its (nonzero) digits is 2007040, while the sum is 52.

The square root of 8170478485 is about 90390.6991067112. The cubic root of 8170478485 is about 2014.1068054959.

The spelling of 8170478485 in words is "eight billion, one hundred seventy million, four hundred seventy-eight thousand, four hundred eighty-five".

Divisors: 1 5 13 23 65 115 299 311 1495 1555 4043 7153 17573 20215 35765 87865 92989 228449 404179 464945 1142245 2020895 5254327 5465203 26271635 27326015 71047639 125699669 355238195 628498345 1634095697 8170478485