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388496542 = 2723252457
BaseRepresentation
bin10111001001111…
…111110010011110
31000002000200001211
4113021333302132
51243423342132
6102314455034
712425110660
oct2711776236
91002020054
10388496542
1118a329225
12aa13447a
1362644615
143984c530
1524190147
hex1727fc9e

388496542 has 24 divisors (see below), whose sum is σ = 696222576. Its totient is φ = 159256416.

The previous prime is 388496513. The next prime is 388496561. The reversal of 388496542 is 245694883.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18823 + ... + 33634.

It is an arithmetic number, because the mean of its divisors is an integer number (29009274).

Almost surely, 2388496542 is an apocalyptic number.

388496542 is a deficient number, since it is larger than the sum of its proper divisors (307726034).

388496542 is a wasteful number, since it uses less digits than its factorization.

388496542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52512 (or 52489 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 388496542 is about 19710.3156240584. The cubic root of 388496542 is about 729.6743039494.

The spelling of 388496542 in words is "three hundred eighty-eight million, four hundred ninety-six thousand, five hundred forty-two".

Divisors: 1 2 7 14 23 46 161 322 529 1058 3703 7406 52457 104914 367199 734398 1206511 2413022 8445577 16891154 27749753 55499506 194248271 388496542