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1442443230 = 232553302399
BaseRepresentation
bin101010111111001…
…1110111111011110
310201112012201010100
41111332132333132
510423231140410
6355044321530
750513364564
oct12576367736
93645181110
101442443230
11680248a48
123430a32a6
1319cabc407
14d97dda34
158697a8c0
hex55f9efde

1442443230 has 48 divisors (see below), whose sum is σ = 3821126400. Its totient is φ = 377392704.

The previous prime is 1442443133. The next prime is 1442443231. The reversal of 1442443230 is 323442441.

It is a happy number.

1442443230 is a `hidden beast` number, since 1 + 4 + 424 + 4 + 3 + 230 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1442443194 and 1442443203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442443231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146430 + ... + 155969.

It is an arithmetic number, because the mean of its divisors is an integer number (79606800).

Almost surely, 21442443230 is an apocalyptic number.

1442443230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442443230 is an abundant number, since it is smaller than the sum of its proper divisors (2378683170).

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

1442443230 is a wasteful number, since it uses less digits than its factorization.

1442443230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302465 (or 302462 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1442443230 is about 37979.5106603547. The cubic root of 1442443230 is about 1129.8815314234.

Adding to 1442443230 its reverse (323442441), we get a palindrome (1765885671).

The spelling of 1442443230 in words is "one billion, four hundred forty-two million, four hundred forty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 53 90 106 159 265 318 477 530 795 954 1590 2385 4770 302399 604798 907197 1511995 1814394 2721591 3023990 4535985 5443182 9071970 13607955 16027147 27215910 32054294 48081441 80135735 96162882 144244323 160271470 240407205 288488646 480814410 721221615 1442443230