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16442024121390 = 235778295352959
BaseRepresentation
bin1110111101000011010100…
…0000011101010000101110
32011012211201221010201202210
43233100311000131100232
54123341231133341030
654545210035031250
73314616454035030
oct357206500352056
964184657121683
1016442024121390
11526a028a791aa
121a166a873b526
1392362634a56a
1440bb26425c50
151d7a64d35bb0
hexef43501d42e

16442024121390 has 32 divisors (see below), whose sum is σ = 45098123304960. Its totient is φ = 3758176941984.

The previous prime is 16442024121389. The next prime is 16442024121421. The reversal of 16442024121390 is 9312142024461.

It is a super-4 number, since 4×164420241213904 (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39147676270 + ... + 39147676689.

It is an arithmetic number, because the mean of its divisors is an integer number (1409316353280).

Almost surely, 216442024121390 is an apocalyptic number.

16442024121390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16442024121390 is an abundant number, since it is smaller than the sum of its proper divisors (28656099183570).

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

16442024121390 is a wasteful number, since it uses less digits than its factorization.

16442024121390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78295352976.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 16442024121390 in words is "sixteen trillion, four hundred forty-two billion, twenty-four million, one hundred twenty-one thousand, three hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 78295352959 156590705918 234886058877 391476764795 469772117754 548067470713 782953529590 1096134941426 1174430294385 1644202412139 2348860588770 2740337353565 3288404824278 5480674707130 8221012060695 16442024121390