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12803042 = 272339761
BaseRepresentation
bin110000110101…
…101111100010
3220002110110202
4300311233202
511234144132
61134225202
7213552440
oct60655742
926073422
1012803042
11725512a
124355202
132863685
1419b3b90
1511cd762
hexc35be2

12803042 has 16 divisors (see below), whose sum is σ = 22902912. Its totient is φ = 5248320.

The previous prime is 12803039. The next prime is 12803047. The reversal of 12803042 is 24030821.

It is not an unprimeable number, because it can be changed into a prime (12803047) 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, 19559 + ... + 20202.

It is an arithmetic number, because the mean of its divisors is an integer number (1431432).

Almost surely, 212803042 is an apocalyptic number.

12803042 is a deficient number, since it is larger than the sum of its proper divisors (10099870).

12803042 is a wasteful number, since it uses less digits than its factorization.

12803042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39793.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 12803042 is about 3578.1338711680. The cubic root of 12803042 is about 233.9399485516.

Adding to 12803042 its reverse (24030821), we get a palindrome (36833863).

The spelling of 12803042 in words is "twelve million, eight hundred three thousand, forty-two".

Divisors: 1 2 7 14 23 46 161 322 39761 79522 278327 556654 914503 1829006 6401521 12803042