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442041111231220 = 22522102055561561
BaseRepresentation
bin110010010000010001011011…
…1011010010011101011110100
32010222010201101002001220120201
41210200202313122103223310
5430414400143433344340
64204050514424410244
7162052262550136204
oct14440426732235364
92128121332056521
10442041111231220
11118936645335aa6
12416b2641916984
1315c863b4712ba7
147b22c925a4404
15361878516379a
hex19208b7693af4

442041111231220 has 12 divisors (see below), whose sum is σ = 928286333585604. Its totient is φ = 176816444492480.

The previous prime is 442041111231197. The next prime is 442041111231263. The reversal of 442041111231220 is 22132111140244.

It can be written as a sum of positive squares in 2 ways, for example, as 132881965173136 + 309159146058084 = 11527444^2 + 17582922^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11051027780761 + ... + 11051027780800.

It is an arithmetic number, because the mean of its divisors is an integer number (77357194465467).

Almost surely, 2442041111231220 is an apocalyptic number.

It is an amenable number.

442041111231220 is an abundant number, since it is smaller than the sum of its proper divisors (486245222354384).

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

442041111231220 is a wasteful number, since it uses less digits than its factorization.

442041111231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22102055561570 (or 22102055561568 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 442041111231220 its reverse (22132111140244), we get a palindrome (464173222371464).

The spelling of 442041111231220 in words is "four hundred forty-two trillion, forty-one billion, one hundred eleven million, two hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 22102055561561 44204111123122 88408222246244 110510277807805 221020555615610 442041111231220