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13003242 = 237793919
BaseRepresentation
bin110001100110…
…100111101010
3220110122002120
4301212213222
511312100432
61142412110
7215345220
oct61464752
926418076
1013003242
11738158a
124431036
132903835
141a26b10
15121cc2c
hexc669ea

13003242 has 32 divisors (see below), whose sum is σ = 30105600. Its totient is φ = 3667248.

The previous prime is 13003231. The next prime is 13003247. The reversal of 13003242 is 24230031.

It is not an unprimeable number, because it can be changed into a prime (13003247) 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 15 ways as a sum of consecutive naturals, for example, 1359 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (940800).

Almost surely, 213003242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13003242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15052800).

13003242 is an abundant number, since it is smaller than the sum of its proper divisors (17102358).

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

13003242 is a wasteful number, since it uses less digits than its factorization.

13003242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13003242 is about 3606.0008319467. Note that the first 3 decimals coincide. The cubic root of 13003242 is about 235.1530133707.

Adding to 13003242 its reverse (24230031), we get a palindrome (37233273).

The spelling of 13003242 in words is "thirteen million, three thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 79 158 237 474 553 1106 1659 3318 3919 7838 11757 23514 27433 54866 82299 164598 309601 619202 928803 1857606 2167207 4334414 6501621 13003242