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385135387 = 7134232257
BaseRepresentation
bin10110111101001…
…011001100011011
3222211200220102121
4112331023030123
51242043313022
6102114442111
712354411460
oct2675131433
9884626377
10385135387
11188442a0a
12a8b93337
1361a38780
1439215667
1523c292c7
hex16f4b31b

385135387 has 8 divisors (see below), whose sum is σ = 474012896. Its totient is φ = 304722432.

The previous prime is 385135369. The next prime is 385135397. The reversal of 385135387 is 783531583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385135387 - 219 = 384611099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385135337) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2116038 + ... + 2116219.

It is an arithmetic number, because the mean of its divisors is an integer number (59251612).

Almost surely, 2385135387 is an apocalyptic number.

385135387 is a deficient number, since it is larger than the sum of its proper divisors (88877509).

385135387 is a wasteful number, since it uses less digits than its factorization.

385135387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232277.

The product of its digits is 302400, while the sum is 43.

The square root of 385135387 is about 19624.8665473170. The cubic root of 385135387 is about 727.5638986084.

The spelling of 385135387 in words is "three hundred eighty-five million, one hundred thirty-five thousand, three hundred eighty-seven".

Divisors: 1 7 13 91 4232257 29625799 55019341 385135387