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442441443 = 31131305137
BaseRepresentation
bin11010010111110…
…001111011100011
31010211112100120010
4122113301323203
51401231111233
6111523020003
713651455513
oct3227617343
91124470503
10442441443
11207823894
1210420a603
1370881492
1442a91843
1528c98b63
hex1a5f1ee3

442441443 has 8 divisors (see below), whose sum is σ = 595142928. Its totient is φ = 292350464.

The previous prime is 442441327. The next prime is 442441453. The reversal of 442441443 is 344144244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442441443 - 216 = 442375907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442441443.

It is not an unprimeable number, because it can be changed into a prime (442441453) 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, 652230 + ... + 652907.

It is an arithmetic number, because the mean of its divisors is an integer number (74392866).

Almost surely, 2442441443 is an apocalyptic number.

442441443 is a deficient number, since it is larger than the sum of its proper divisors (152701485).

442441443 is a wasteful number, since it uses less digits than its factorization.

442441443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305253.

The product of its digits is 24576, while the sum is 30.

The square root of 442441443 is about 21034.2920727083. The cubic root of 442441443 is about 761.9946696743.

Adding to 442441443 its reverse (344144244), we get a palindrome (786585687).

The spelling of 442441443 in words is "four hundred forty-two million, four hundred forty-one thousand, four hundred forty-three".