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388499485 = 5117989413
BaseRepresentation
bin10111001010000…
…000100000011101
31000002000211002211
4113022000200131
51243423440420
6102314520421
712425122363
oct2712004035
91002024084
10388499485
1118a330460
12aa136111
1362645a6a
143984d633
1524190e5a
hex1728081d

388499485 has 16 divisors (see below), whose sum is σ = 515024640. Its totient is φ = 278965440.

The previous prime is 388499473. The next prime is 388499491. The reversal of 388499485 is 584994883.

It is not a de Polignac number, because 388499485 - 211 = 388497437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40362 + ... + 49051.

It is an arithmetic number, because the mean of its divisors is an integer number (32189040).

Almost surely, 2388499485 is an apocalyptic number.

It is an amenable number.

388499485 is a deficient number, since it is larger than the sum of its proper divisors (126525155).

388499485 is a wasteful number, since it uses less digits than its factorization.

388499485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89508.

The product of its digits is 9953280, while the sum is 58.

The square root of 388499485 is about 19710.3902802557. The cubic root of 388499485 is about 729.6761464592.

It can be divided in two parts, 3 and 88499485, that added together give a palindrome (88499488).

The spelling of 388499485 in words is "three hundred eighty-eight million, four hundred ninety-nine thousand, four hundred eighty-five".

Divisors: 1 5 11 55 79 395 869 4345 89413 447065 983543 4917715 7063627 35318135 77699897 388499485