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11819804 = 2231199479
BaseRepresentation
bin101101000101…
…101100011100
3211020111201112
4231011230130
511011213204
61101201152
7202316033
oct55055434
924214645
1011819804
116743437
123b601b8
1325aac89
1417d971a
15108726e
hexb45b1c

11819804 has 24 divisors (see below), whose sum is σ = 21504000. Its totient is φ = 5678640.

The previous prime is 11819789. The next prime is 11819809. The reversal of 11819804 is 40891811.

11819804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11819809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24437 + ... + 24915.

It is an arithmetic number, because the mean of its divisors is an integer number (896000).

Almost surely, 211819804 is an apocalyptic number.

It is an amenable number.

11819804 is a deficient number, since it is larger than the sum of its proper divisors (9684196).

11819804 is a wasteful number, since it uses less digits than its factorization.

With its successor (11819805) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (713).

11819804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 11819804 is about 3437.9941826594. The cubic root of 11819804 is about 227.7911034220.

The spelling of 11819804 in words is "eleven million, eight hundred nineteen thousand, eight hundred four".

Divisors: 1 2 4 31 62 124 199 398 479 796 958 1916 6169 12338 14849 24676 29698 59396 95321 190642 381284 2954951 5909902 11819804