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387790368 = 2537577069
BaseRepresentation
bin10111000111010…
…011011000100000
31000000200210101020
4113013103120200
51243233242433
6102251405440
712416110110
oct2707233040
91000623336
10387790368
11189996709
12a9a53880
1362458074
1439707040
15240a0cb3
hex171d3620

387790368 has 48 divisors (see below), whose sum is σ = 1163373120. Its totient is φ = 110797056.

The previous prime is 387790367. The next prime is 387790387. The reversal of 387790368 is 863097783.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 387790368.

It is not an unprimeable number, because it can be changed into a prime (387790367) 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 7 ways as a sum of consecutive naturals, for example, 287863 + ... + 289206.

It is an arithmetic number, because the mean of its divisors is an integer number (24236940).

Almost surely, 2387790368 is an apocalyptic number.

It is an amenable number.

387790368 is an abundant number, since it is smaller than the sum of its proper divisors (775582752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387790368 is a wasteful number, since it uses less digits than its factorization.

387790368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577089 (or 577081 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 387790368 is about 19692.3936584662. The cubic root of 387790368 is about 729.2319237393.

The spelling of 387790368 in words is "three hundred eighty-seven million, seven hundred ninety thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 577069 1154138 1731207 2308276 3462414 4039483 4616552 6924828 8078966 9233104 12118449 13849656 16157932 18466208 24236898 27699312 32315864 48473796 55398624 64631728 96947592 129263456 193895184 387790368