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1428382 = 21937589
BaseRepresentation
bin101011100101110011110
32200120101001
411130232132
5331202012
650340514
715066244
oct5345636
92616331
101428382
1189618a
1258a73a
133b01c7
14292794
151d3357
hex15cb9e

1428382 has 8 divisors (see below), whose sum is σ = 2255400. Its totient is φ = 676584.

The previous prime is 1428359. The next prime is 1428389. The reversal of 1428382 is 2838241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1428382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428389) 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 3 ways as a sum of consecutive naturals, for example, 18757 + ... + 18832.

It is an arithmetic number, because the mean of its divisors is an integer number (281925).

21428382 is an apocalyptic number.

1428382 is a deficient number, since it is larger than the sum of its proper divisors (827018).

1428382 is a wasteful number, since it uses less digits than its factorization.

1428382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37610.

The product of its digits is 3072, while the sum is 28.

The square root of 1428382 is about 1195.1493630505. The cubic root of 1428382 is about 112.6198098087.

It can be divided in two parts, 14283 and 82, that added together give a triangular number (14365 = T169).

The spelling of 1428382 in words is "one million, four hundred twenty-eight thousand, three hundred eighty-two".

Divisors: 1 2 19 38 37589 75178 714191 1428382