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85555745 = 51123471439
BaseRepresentation
bin1010001100101…
…11101000100001
312221222200102022
411012113220201
5133400240440
612253431225
72056132442
oct506275041
9187880368
1085555745
1144326330
122479b515
1314957102
14b5112c9
15779ecb5
hex5197a21

85555745 has 32 divisors (see below), whose sum is σ = 119439360. Its totient is φ = 58210240.

The previous prime is 85555703. The next prime is 85555763. The reversal of 85555745 is 54755558.

It is not a de Polignac number, because 85555745 - 212 = 85551649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85555696 and 85555705.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58736 + ... + 60174.

It is an arithmetic number, because the mean of its divisors is an integer number (3732480).

Almost surely, 285555745 is an apocalyptic number.

It is an amenable number.

85555745 is a deficient number, since it is larger than the sum of its proper divisors (33883615).

85555745 is a wasteful number, since it uses less digits than its factorization.

85555745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its digits is 700000, while the sum is 44.

The square root of 85555745 is about 9249.6348576579. The cubic root of 85555745 is about 440.6391279946.

The spelling of 85555745 in words is "eighty-five million, five hundred fifty-five thousand, seven hundred forty-five".

Divisors: 1 5 11 23 47 55 115 235 253 517 1081 1265 1439 2585 5405 7195 11891 15829 33097 59455 67633 79145 165485 338165 364067 743963 1555559 1820335 3719815 7777795 17111149 85555745