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1001242 = 21171641
BaseRepresentation
bin11110100011100011010
31212212110001
43310130122
5224014432
633243214
711340034
oct3643432
91785401
101001242
11624280
1240350a
13290968
141c0c54
1514b9e7
hexf471a

1001242 has 16 divisors (see below), whose sum is σ = 1664064. Its totient is φ = 448000.

The previous prime is 1001237. The next prime is 1001267. The reversal of 1001242 is 2421001.

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 7 ways as a sum of consecutive naturals, for example, 1242 + ... + 1882.

It is an arithmetic number, because the mean of its divisors is an integer number (104004).

21001242 is an apocalyptic number.

1001242 is a deficient number, since it is larger than the sum of its proper divisors (662822).

1001242 is a wasteful number, since it uses less digits than its factorization.

1001242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1001242 is about 1000.6208072991. The cubic root of 1001242 is about 100.0413828722.

Adding to 1001242 its reverse (2421001), we get a palindrome (3422243).

It can be divided in two parts, 1001 and 242, that multiplied together give a palindrome (242242).

The spelling of 1001242 in words is "one million, one thousand, two hundred forty-two".

Divisors: 1 2 11 22 71 142 641 781 1282 1562 7051 14102 45511 91022 500621 1001242