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2204404393 = 2578577449
BaseRepresentation
bin1000001101100100…
…1000101010101001
312200121222100100011
42003121020222221
514003311420033
61002424011521
7105425061652
oct20331105251
95617870304
102204404393
11a31368714
12516300ba1
132919142c9
1416caa6529
15cd7dbccd
hex83648aa9

2204404393 has 4 divisors (see below), whose sum is σ = 2212982100. Its totient is φ = 2195826688.

The previous prime is 2204404333. The next prime is 2204404427. The reversal of 2204404393 is 3934044022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1206033984 + 998370409 = 34728^2 + 31597^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204404393 - 229 = 1667533481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2204404333) 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, 4288468 + ... + 4288981.

It is an arithmetic number, because the mean of its divisors is an integer number (553245525).

Almost surely, 22204404393 is an apocalyptic number.

It is an amenable number.

2204404393 is a deficient number, since it is larger than the sum of its proper divisors (8577707).

2204404393 is an equidigital number, since it uses as much as digits as its factorization.

2204404393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8577706.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 2204404393 is about 46951.0851099312. The cubic root of 2204404393 is about 1301.4587949454.

The spelling of 2204404393 in words is "two billion, two hundred four million, four hundred four thousand, three hundred ninety-three".

Divisors: 1 257 8577449 2204404393