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12019804 = 2229103619
BaseRepresentation
bin101101110110…
…100001011100
3211121200001221
4231312201130
511034113204
61105343124
7204111106
oct55664134
924550057
1012019804
11686a725
124037aa4
13264b014
14184c576
1510c6654
hexb7685c

12019804 has 12 divisors (see below), whose sum is σ = 21760200. Its totient is φ = 5802608.

The previous prime is 12019801. The next prime is 12019807. The reversal of 12019804 is 40891021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12019801) and next prime (12019807).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12019801) 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 3 ways as a sum of consecutive naturals, for example, 51694 + ... + 51925.

It is an arithmetic number, because the mean of its divisors is an integer number (1813350).

Almost surely, 212019804 is an apocalyptic number.

It is an amenable number.

12019804 is a deficient number, since it is larger than the sum of its proper divisors (9740396).

12019804 is a wasteful number, since it uses less digits than its factorization.

12019804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103652 (or 103650 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12019804 is about 3466.9588979392. The cubic root of 12019804 is about 229.0687232957.

The spelling of 12019804 in words is "twelve million, nineteen thousand, eight hundred four".

Divisors: 1 2 4 29 58 116 103619 207238 414476 3004951 6009902 12019804