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442420032031 = 3734673448889
BaseRepresentation
bin1100111000000100100…
…10011111001000011111
31120021222000100021100021
412130002102133020133
524222034012011111
6535124524413011
743651403136535
oct6340222371037
91507860307307
10442420032031
111606a163530a
12718b16a7167
1332948ba1403
14175add26155
15b795ab1d71
hex670249f21f

442420032031 has 8 divisors (see below), whose sum is σ = 454508519760. Its totient is φ = 430338449088.

The previous prime is 442420032029. The next prime is 442420032077. The reversal of 442420032031 is 130230024244.

It is a happy number.

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 442420032031 - 21 = 442420032029 is a prime.

It is a super-2 number, since 2×4424200320312 (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 = 442420031987 and 442420032005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442420032091) 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, 1596166 + ... + 1852723.

It is an arithmetic number, because the mean of its divisors is an integer number (56813564970).

Almost surely, 2442420032031 is an apocalyptic number.

442420032031 is a deficient number, since it is larger than the sum of its proper divisors (12088487729).

442420032031 is a wasteful number, since it uses less digits than its factorization.

442420032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452393.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 442420032031 its reverse (130230024244), we get a palindrome (572650056275).

The spelling of 442420032031 in words is "four hundred forty-two billion, four hundred twenty million, thirty-two thousand, thirty-one".

Divisors: 1 37 3467 128279 3448889 127608893 11957298163 442420032031