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442000003231 = 15711442319507
BaseRepresentation
bin1100110111010010100…
…00001101000010011111
31120020212201222121011001
412123221100031002133
524220204000100411
6535015122011131
743635113016013
oct6335120150237
91506781877131
10442000003231
111604a652a476
12717b4aa6aa7
13328acb69567
141757022a543
15b76dc93dc1
hex66e940d09f

442000003231 has 8 divisors (see below), whose sum is σ = 442334692224. Its totient is φ = 441665385240.

The previous prime is 442000003217. The next prime is 442000003279. The reversal of 442000003231 is 132300000244.

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 442000003231 - 25 = 442000003199 is a prime.

It is a super-2 number, since 2×4420000032312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442000003199 and 442000003208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442000003631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22648780 + ... + 22668286.

It is an arithmetic number, because the mean of its divisors is an integer number (55291836528).

Almost surely, 2442000003231 is an apocalyptic number.

442000003231 is a deficient number, since it is larger than the sum of its proper divisors (334688993).

442000003231 is a wasteful number, since it uses less digits than its factorization.

442000003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35501.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 442000003231 its reverse (132300000244), we get a palindrome (574300003475).

The spelling of 442000003231 in words is "four hundred forty-two billion, three thousand, two hundred thirty-one".

Divisors: 1 1571 14423 19507 22658533 30645497 281349461 442000003231