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387663284 = 22656314767
BaseRepresentation
bin10111000110110…
…100010110110100
31000000110100001102
4113012310112310
51243220211114
6102244545232
712415040441
oct2706642664
91000410042
10387663284
1118990a188
12a99b2218
1362412278
14396b29c8
15240782de
hex171b45b4

387663284 has 12 divisors (see below), whose sum is σ = 678560064. Its totient is φ = 193788984.

The previous prime is 387663233. The next prime is 387663307. The reversal of 387663284 is 482366783.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18869 + ... + 33635.

It is an arithmetic number, because the mean of its divisors is an integer number (56546672).

Almost surely, 2387663284 is an apocalyptic number.

It is an amenable number.

387663284 is a deficient number, since it is larger than the sum of its proper divisors (290896780).

387663284 is a wasteful number, since it uses less digits than its factorization.

387663284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21334 (or 21332 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The square root of 387663284 is about 19689.1666659613. The cubic root of 387663284 is about 729.1522554075.

The spelling of 387663284 in words is "three hundred eighty-seven million, six hundred sixty-three thousand, two hundred eighty-four".

Divisors: 1 2 4 6563 13126 14767 26252 29534 59068 96915821 193831642 387663284