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12803442 = 232973583
BaseRepresentation
bin110000110101…
…110101110010
3220002111000120
4300311311302
511234202232
61134231110
7213553551
oct60656562
926074016
1012803442
117255463
124355496
132863902
1419b3d98
1511cd92c
hexc35d72

12803442 has 16 divisors (see below), whose sum is σ = 26490240. Its totient is φ = 4120592.

The previous prime is 12803423. The next prime is 12803447. The reversal of 12803442 is 24430821.

It is not an unprimeable number, because it can be changed into a prime (12803447) 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 7 ways as a sum of consecutive naturals, for example, 36618 + ... + 36965.

It is an arithmetic number, because the mean of its divisors is an integer number (1655640).

Almost surely, 212803442 is an apocalyptic number.

12803442 is an abundant number, since it is smaller than the sum of its proper divisors (13686798).

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

12803442 is a wasteful number, since it uses less digits than its factorization.

12803442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73617.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 12803442 is about 3578.1897657894. The cubic root of 12803442 is about 233.9423848217.

The spelling of 12803442 in words is "twelve million, eight hundred three thousand, four hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 73583 147166 220749 441498 2133907 4267814 6401721 12803442