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442204323 = 311173372339
BaseRepresentation
bin11010010110111…
…000000010100011
31010211002022021220
4122112320002203
51401201014243
6111513550123
713646450301
oct3226700243
91124068256
10442204323
11207681720
12104115343
13707ca582
1442a2d271
1528c4d783
hex1a5b80a3

442204323 has 32 divisors (see below), whose sum is σ = 683354880. Its totient is φ = 251381760.

The previous prime is 442204297. The next prime is 442204327. The reversal of 442204323 is 323402244.

It is not a de Polignac number, because 442204323 - 25 = 442204291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442204293 and 442204302.

It is not an unprimeable number, because it can be changed into a prime (442204327) 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 31 ways as a sum of consecutive naturals, for example, 187888 + ... + 190226.

It is an arithmetic number, because the mean of its divisors is an integer number (21354840).

Almost surely, 2442204323 is an apocalyptic number.

442204323 is a deficient number, since it is larger than the sum of its proper divisors (241150557).

442204323 is a wasteful number, since it uses less digits than its factorization.

442204323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 442204323 is about 21028.6548071911. The cubic root of 442204323 is about 761.8585187275.

Adding to 442204323 its reverse (323402244), we get a palindrome (765606567).

The spelling of 442204323 in words is "four hundred forty-two million, two hundred four thousand, three hundred twenty-three".

Divisors: 1 3 11 17 33 51 187 337 561 1011 2339 3707 5729 7017 11121 17187 25729 39763 63019 77187 119289 189057 437393 788243 1312179 2364729 8670673 13400131 26012019 40200393 147401441 442204323