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424444424420 = 225181487124071
BaseRepresentation
bin1100010110100101101…
…10111111000011100100
31111120120021001210101102
412023102312333003210
523423230233040140
6522553113015232
742444062036342
oct6132266770344
91446507053342
10424444424420
111540078a3255
126a3156b4518
1331042a315c3
1416786848992
15b092925e15
hex62d2dbf0e4

424444424420 has 48 divisors (see below), whose sum is σ = 896479024896. Its totient is φ = 168798096000.

The previous prime is 424444424413. The next prime is 424444424423. The reversal of 424444424420 is 24424444424.

It is not an unprimeable number, because it can be changed into a prime (424444424423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17620985 + ... + 17645055.

It is an arithmetic number, because the mean of its divisors is an integer number (18676646352).

Almost surely, 2424444424420 is an apocalyptic number.

It is an amenable number.

424444424420 is an abundant number, since it is smaller than the sum of its proper divisors (472034600476).

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

424444424420 is a wasteful number, since it uses less digits than its factorization.

424444424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29132 (or 29130 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 38.

Adding to 424444424420 its reverse (24424444424), we get a palindrome (448868868844).

The spelling of 424444424420 in words is "four hundred twenty-four billion, four hundred forty-four million, four hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 4871 9742 19484 24071 24355 48142 48710 96284 97420 120355 240710 481420 881651 1763302 3526604 4356851 4408255 8713702 8816510 17427404 17633020 21784255 43568510 87137020 117249841 234499682 468999364 586249205 1172498410 2344996820 21222221221 42444442442 84888884884 106111106105 212222212210 424444424420