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442003330231 = 23144713280951
BaseRepresentation
bin1100110111010010111…
…00111001010010110111
31120020212222020121221021
412123221130321102313
524220210323031411
6535015321202011
743635153213511
oct6335134712267
91506788217837
10442003330231
111604a83a2061
12717b6030307
13328b07629b8
1417570854bb1
15b76e1eea71
hex66e97394b7

442003330231 has 8 divisors (see below), whose sum is σ = 461539643904. Its totient is φ = 422493581400.

The previous prime is 442003330229. The next prime is 442003330253. The reversal of 442003330231 is 132033300244.

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 442003330231 - 21 = 442003330229 is a prime.

It is a super-2 number, since 2×4420033302312 (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 = 442003330196 and 442003330205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442003330201) 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 7 ways as a sum of consecutive naturals, for example, 6607195 + ... + 6673756.

It is an arithmetic number, because the mean of its divisors is an integer number (57692455488).

Almost surely, 2442003330231 is an apocalyptic number.

442003330231 is a deficient number, since it is larger than the sum of its proper divisors (19536313673).

442003330231 is a wasteful number, since it uses less digits than its factorization.

442003330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282421.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 442003330231 its reverse (132033300244), we get a palindrome (574036630475).

The spelling of 442003330231 in words is "four hundred forty-two billion, three million, three hundred thirty thousand, two hundred thirty-one".

Divisors: 1 23 1447 33281 13280951 305461873 19217536097 442003330231