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30440371680880 = 245727765400939
BaseRepresentation
bin1101110101111011100111…
…00010100111011001110000
310222210001220211201000021221
412322331303202213121300
512442213340122242010
6144424040320354424
76261146534044600
oct672756342473160
9128701824630257
1030440371680880
119776764264877
1234b766aa75a14
1313ca68cb37555
1477347122cc00
1537bc55b26dda
hex1baf738a7670

30440371680880 has 60 divisors (see below), whose sum is σ = 82328780765880. Its totient is φ = 10436698860672.

The previous prime is 30440371680821. The next prime is 30440371680889. The reversal of 30440371680880 is 8808617304403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30440371680889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3882696550 + ... + 3882704389.

It is an arithmetic number, because the mean of its divisors is an integer number (1372146346098).

Almost surely, 230440371680880 is an apocalyptic number.

It is an amenable number.

30440371680880 is an abundant number, since it is smaller than the sum of its proper divisors (51888409085000).

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

30440371680880 is a wasteful number, since it uses less digits than its factorization.

30440371680880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765400966 (or 7765400953 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 30440371680880 in words is "thirty trillion, four hundred forty billion, three hundred seventy-one million, six hundred eighty thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1960 3920 7765400939 15530801878 31061603756 38827004695 54357806573 62123207512 77654009390 108715613146 124246415024 155308018780 217431226292 271789032865 310616037560 380504646011 434862452584 543578065730 621232075120 761009292022 869724905168 1087156131460 1522018584044 1902523230055 2174312262920 3044037168088 3805046460110 4348624525840 6088074336176 7610092920220 15220185840440 30440371680880