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1804494472 = 231120505619
BaseRepresentation
bin110101110001110…
…0110011010001000
311122202110211001121
41223203212122020
512143422310342
6455020325024
762500643554
oct15343463210
94582424047
101804494472
11846654450
124243a3774
13229b04a11
14131926864
15a8645067
hex6b8e6688

1804494472 has 16 divisors (see below), whose sum is σ = 3691011600. Its totient is φ = 820224720.

The previous prime is 1804494413. The next prime is 1804494479. The reversal of 1804494472 is 2744944081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1804494479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10252722 + ... + 10252897.

It is an arithmetic number, because the mean of its divisors is an integer number (230688225).

Almost surely, 21804494472 is an apocalyptic number.

It is an amenable number.

1804494472 is an abundant number, since it is smaller than the sum of its proper divisors (1886517128).

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

1804494472 is a wasteful number, since it uses less digits than its factorization.

1804494472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20505636 (or 20505632 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 1804494472 is about 42479.3417086470. The cubic root of 1804494472 is about 1217.4520126636.

The spelling of 1804494472 in words is "one billion, eight hundred four million, four hundred ninety-four thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 20505619 41011238 82022476 164044952 225561809 451123618 902247236 1804494472