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1427242 = 21923271
BaseRepresentation
bin101011100011100101010
32200111210211
411130130222
5331132432
650331334
715063025
oct5343452
92614724
101427242
11895343
12589b4a
133ac82b
142921bc
151d2d47
hex15c72a

1427242 has 24 divisors (see below), whose sum is σ = 2388960. Its totient is φ = 637560.

The previous prime is 1427233. The next prime is 1427281. The reversal of 1427242 is 2427241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20067 + ... + 20137.

It is an arithmetic number, because the mean of its divisors is an integer number (99540).

21427242 is an apocalyptic number.

1427242 is a deficient number, since it is larger than the sum of its proper divisors (961718).

1427242 is a wasteful number, since it uses less digits than its factorization.

1427242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 115 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 1427242 is about 1194.6723400163. The cubic root of 1427242 is about 112.5898409923.

Subtracting 1427242 from its reverse (2427241), we obtain a palindrome (999999).

The spelling of 1427242 in words is "one million, four hundred twenty-seven thousand, two hundred forty-two".

Divisors: 1 2 19 23 38 46 71 142 437 529 874 1058 1349 1633 2698 3266 10051 20102 31027 37559 62054 75118 713621 1427242