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404302242 = 2372379311
BaseRepresentation
bin11000000110010…
…010100110100010
31001011202200102010
4120012102212202
51312000132432
6104041333350
713006340511
oct3006224642
91034680363
10404302242
11198244293
12b3497256
13659b98c6
143b9a4678
15257633cc
hex181929a2

404302242 has 16 divisors (see below), whose sum is σ = 808803072. Its totient is φ = 134734320.

The previous prime is 404302237. The next prime is 404302259. The reversal of 404302242 is 242203404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38767 + ... + 48077.

It is an arithmetic number, because the mean of its divisors is an integer number (50550192).

Almost surely, 2404302242 is an apocalyptic number.

404302242 is an abundant number, since it is smaller than the sum of its proper divisors (404500830).

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

404302242 is a wasteful number, since it uses less digits than its factorization.

404302242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16553.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 404302242 is about 20107.2683873270. The cubic root of 404302242 is about 739.4384844239.

Adding to 404302242 its reverse (242203404), we get a palindrome (646505646).

The spelling of 404302242 in words is "four hundred four million, three hundred two thousand, two hundred forty-two".

Divisors: 1 2 3 6 7237 9311 14474 18622 21711 27933 43422 55866 67383707 134767414 202151121 404302242