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379387638 = 237712391
BaseRepresentation
bin10110100111001…
…111111011110110
3222102212220000000
4112213033323312
51234110401023
6101351332130
712254512260
oct2647177366
9872786000
10379387638
11185177603
12a7081046
13607a5536
143855ab30
1523491243
hex169cfef6

379387638 has 64 divisors (see below), whose sum is σ = 975498240. Its totient is φ = 108387720.

The previous prime is 379387607. The next prime is 379387681. The reversal of 379387638 is 836783973.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24423 + ... + 36813.

It is an arithmetic number, because the mean of its divisors is an integer number (15242160).

Almost surely, 2379387638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 379387638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487749120).

379387638 is an abundant number, since it is smaller than the sum of its proper divisors (596110602).

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

379387638 is an equidigital number, since it uses as much as digits as its factorization.

379387638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12421 (or 12403 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 379387638 is about 19477.8756028475. The cubic root of 379387638 is about 723.9263620251.

The spelling of 379387638 in words is "three hundred seventy-nine million, three hundred eighty-seven thousand, six hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 243 378 486 567 729 1134 1458 1701 2187 3402 4374 5103 10206 12391 15309 24782 30618 37173 74346 86737 111519 173474 223038 260211 334557 520422 669114 780633 1003671 1561266 2007342 2341899 3011013 4683798 6022026 7025697 9033039 14051394 18066078 21077091 27099117 42154182 54198234 63231273 126462546 189693819 379387638