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18825442671910 = 2572431782750119
BaseRepresentation
bin1000100011111001000111…
…10100101011110100100110
32110122200202110122001012011
410101330203310223310212
54431414001311000120
6104012142230144434
73652044006325600
oct421744364536446
973580673561164
1018825442671910
115aa8909678a26
1221405b67b211a
13a67301b648a4
14491228bcc170
15229a5db5ec5a
hex111f23d2bd26

18825442671910 has 96 divisors (see below), whose sum is σ = 40337940867840. Its totient is φ = 6303854870208.

The previous prime is 18825442671887. The next prime is 18825442671913. The reversal of 18825442671910 is 1917624452881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18825442671913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375589831 + ... + 375639949.

It is an arithmetic number, because the mean of its divisors is an integer number (420186884040).

Almost surely, 218825442671910 is an apocalyptic number.

18825442671910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18825442671910 is an abundant number, since it is smaller than the sum of its proper divisors (21512498195930).

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

18825442671910 is a wasteful number, since it uses less digits than its factorization.

18825442671910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68010 (or 68003 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 18825442671910 in words is "eighteen trillion, eight hundred twenty-five billion, four hundred forty-two million, six hundred seventy-one thousand, nine hundred ten".

Divisors: 1 2 5 7 10 14 35 43 49 70 86 98 215 245 301 430 490 602 1505 2107 3010 4214 10535 17827 21070 35654 50119 89135 100238 124789 178270 249578 250595 350833 501190 623945 701666 766561 873523 1247890 1533122 1747046 1754165 2155117 2455831 3508330 3832805 4310234 4367615 4911662 5365927 7665610 8735230 10731854 10775585 12279155 15085819 21551170 24558310 26829635 30171638 37561489 53659270 75122978 75429095 105600733 150858190 187807445 211201466 375614890 528003665 893471413 1056007330 1786942826 4467357065 6254299891 8934714130 12508599782 31271499455 38419270759 43780099237 62542998910 76838541518 87560198474 192096353795 218900496185 268934895313 384192707590 437800992370 537869790626 1344674476565 1882544267191 2689348953130 3765088534382 9412721335955 18825442671910