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20304044432 = 247707925609
BaseRepresentation
bin10010111010001101…
…110010000110010000
31221102000122022210122
4102322031302012100
5313040313410212
613154430045412
71316103346550
oct227215620620
957360568718
1020304044432
11867a116111
123b27949868
131bb7690599
14da882d160
157dc7c8272
hex4ba372190

20304044432 has 40 divisors (see below), whose sum is σ = 44967062400. Its totient is φ = 8700164352.

The previous prime is 20304044419. The next prime is 20304044437. The reversal of 20304044432 is 23444040302.

It is not an unprimeable number, because it can be changed into a prime (20304044437) 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, 780044 + ... + 805652.

It is an arithmetic number, because the mean of its divisors is an integer number (1124176560).

Almost surely, 220304044432 is an apocalyptic number.

It is an amenable number.

20304044432 is an abundant number, since it is smaller than the sum of its proper divisors (24663017968).

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

20304044432 is a wasteful number, since it uses less digits than its factorization.

20304044432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32703 (or 32697 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20304044432 its reverse (23444040302), we get a palindrome (43748084734).

The spelling of 20304044432 in words is "twenty billion, three hundred four million, forty-four thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 7079 14158 25609 28316 49553 51218 56632 99106 102436 113264 179263 198212 204872 358526 396424 409744 717052 792848 1434104 2868208 181286111 362572222 725144444 1269002777 1450288888 2538005554 2900577776 5076011108 10152022216 20304044432