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427018085 = 51353123953
BaseRepresentation
bin11001011100111…
…100011101100101
31002202111202200122
4121130330131211
51333304034320
6110212251325
713403410454
oct3134743545
91082452618
10427018085
111aa04a00a
12bb010b45
136a611230
14409d8b9b
152774dd25
hex1973c765

427018085 has 16 divisors (see below), whose sum is σ = 562255344. Its totient is φ = 309384192.

The previous prime is 427018063. The next prime is 427018133. The reversal of 427018085 is 580810724.

It can be written as a sum of positive squares in 8 ways, for example, as 20511841 + 406506244 = 4529^2 + 20162^2 .

It is not a de Polignac number, because 427018085 - 26 = 427018021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58532 + ... + 65421.

It is an arithmetic number, because the mean of its divisors is an integer number (35140959).

Almost surely, 2427018085 is an apocalyptic number.

It is an amenable number.

427018085 is a deficient number, since it is larger than the sum of its proper divisors (135237259).

427018085 is a wasteful number, since it uses less digits than its factorization.

427018085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124024.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 427018085 is about 20664.4159123843. The cubic root of 427018085 is about 753.0354522066.

The spelling of 427018085 in words is "four hundred twenty-seven million, eighteen thousand, eighty-five".

Divisors: 1 5 13 53 65 265 689 3445 123953 619765 1611389 6569509 8056945 32847545 85403617 427018085