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386814085 = 5721578833
BaseRepresentation
bin10111000011100…
…101000010000101
3222221212012011121
4113003211002011
51243011022320
6102214433541
712404602600
oct2703450205
9887765147
10386814085
1118938a169
12a96628b1
13621a5898
1439531337
1523e5b8aa
hex170e5085

386814085 has 12 divisors (see below), whose sum is σ = 539961228. Its totient is φ = 265243776.

The previous prime is 386814067. The next prime is 386814097. The reversal of 386814085 is 580418683.

It can be written as a sum of positive squares in 2 ways, for example, as 240839361 + 145974724 = 15519^2 + 12082^2 .

It is not a de Polignac number, because 386814085 - 25 = 386814053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789172 + ... + 789661.

It is an arithmetic number, because the mean of its divisors is an integer number (44996769).

Almost surely, 2386814085 is an apocalyptic number.

386814085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

386814085 is a deficient number, since it is larger than the sum of its proper divisors (153147143).

386814085 is a wasteful number, since it uses less digits than its factorization.

386814085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578852 (or 1578845 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 386814085 is about 19667.5897099772. The cubic root of 386814085 is about 728.6194493439.

The spelling of 386814085 in words is "three hundred eighty-six million, eight hundred fourteen thousand, eighty-five".

Divisors: 1 5 7 35 49 245 1578833 7894165 11051831 55259155 77362817 386814085