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386085789 = 3242898421
BaseRepresentation
bin10111000000110…
…011001110011101
3222220111012010200
4113000303032131
51242314221124
6102151054113
712365450355
oct2700631635
9886435120
10386085789
11188a31a71
12a9371339
1361cac23b
14393c1b65
1523d65bc9
hex1703339d

386085789 has 6 divisors (see below), whose sum is σ = 557679486. Its totient is φ = 257390520.

The previous prime is 386085779. The next prime is 386085823. The reversal of 386085789 is 987580683.

It is a happy number.

386085789 is a `hidden beast` number, since 3 + 8 + 60 + 8 + 578 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 304328025 + 81757764 = 17445^2 + 9042^2 .

It is not a de Polignac number, because 386085789 - 28 = 386085533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386085769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21449202 + ... + 21449219.

It is an arithmetic number, because the mean of its divisors is an integer number (92946581).

Almost surely, 2386085789 is an apocalyptic number.

It is an amenable number.

386085789 is a deficient number, since it is larger than the sum of its proper divisors (171593697).

386085789 is a wasteful number, since it uses less digits than its factorization.

386085789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42898427 (or 42898424 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 386085789 is about 19649.0658556584. The cubic root of 386085789 is about 728.1618789526.

The spelling of 386085789 in words is "three hundred eighty-six million, eighty-five thousand, seven hundred eighty-nine".

Divisors: 1 3 9 42898421 128695263 386085789