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385105075 = 52471791831
BaseRepresentation
bin10110111101000…
…011110010110011
3222211122100211221
4112331003302303
51242041330300
6102114045511
712354224215
oct2675036263
9884570757
10385105075
11188422163
12a8b79897
1361a27a34
14392085b5
1523c2031a
hex16f43cb3

385105075 has 24 divisors (see below), whose sum is σ = 490682880. Its totient is φ = 299680800.

The previous prime is 385105069. The next prime is 385105081. The reversal of 385105075 is 570501583.

It is an interprime number because it is at equal distance from previous prime (385105069) and next prime (385105081).

It is not a de Polignac number, because 385105075 - 25 = 385105043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385105075.

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 23 ways as a sum of consecutive naturals, for example, 209410 + ... + 211240.

It is an arithmetic number, because the mean of its divisors is an integer number (20445120).

Almost surely, 2385105075 is an apocalyptic number.

385105075 is a deficient number, since it is larger than the sum of its proper divisors (105577805).

385105075 is a wasteful number, since it uses less digits than its factorization.

385105075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2062 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 385105075 is about 19624.0942466143. The cubic root of 385105075 is about 727.5448105195.

The spelling of 385105075 in words is "three hundred eighty-five million, one hundred five thousand, seventy-five".

Divisors: 1 5 25 47 179 235 895 1175 1831 4475 8413 9155 42065 45775 86057 210325 327749 430285 1638745 2151425 8193725 15404203 77021015 385105075