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385485188 = 221126471231
BaseRepresentation
bin10110111110100…
…000100110000100
3222212100200021012
4112332200212010
51242141011223
6102130141352
712360366344
oct2676404604
9885320235
10385485188
11188661800
12a9121858
1361b2ba5a
14392a6d24
1523c97c78
hex16fa0984

385485188 has 36 divisors (see below), whose sum is σ = 743250816. Its totient is φ = 174807600.

The previous prime is 385485181. The next prime is 385485227. The reversal of 385485188 is 881584583.

It is not an unprimeable number, because it can be changed into a prime (385485181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312533 + ... + 313763.

It is an arithmetic number, because the mean of its divisors is an integer number (20645856).

Almost surely, 2385485188 is an apocalyptic number.

It is an amenable number.

385485188 is a deficient number, since it is larger than the sum of its proper divisors (357765628).

385485188 is a wasteful number, since it uses less digits than its factorization.

385485188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1891 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 50.

The square root of 385485188 is about 19633.7767125940. The cubic root of 385485188 is about 727.7841030487.

The spelling of 385485188 in words is "three hundred eighty-five million, four hundred eighty-five thousand, one hundred eighty-eight".

Divisors: 1 2 4 11 22 44 121 242 484 647 1231 1294 2462 2588 4924 7117 13541 14234 27082 28468 54164 78287 148951 156574 297902 313148 595804 796457 1592914 3185828 8761027 17522054 35044108 96371297 192742594 385485188