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18214310623020 = 22354310529670511
BaseRepresentation
bin1000010010000110110011…
…00000111011011100101100
32101111021022121212022102220
410021003121200323130230
54341410402004414040
6102423312213315340
73556640411531541
oct411033140733454
971437277768386
1018214310623020
115892711556326
12206207b935b50
13a217a9b27805
1446d812302bc8
15218be186c2d0
hex1090d983b72c

18214310623020 has 96 divisors (see below), whose sum is σ = 52191152133120. Its totient is φ = 4743734876160.

The previous prime is 18214310623001. The next prime is 18214310623027. The reversal of 18214310623020 is 2032601341281.

It is a super-2 number, since 2×182143106230202 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18214310623027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26829565 + ... + 27500075.

It is an arithmetic number, because the mean of its divisors is an integer number (543657834720).

Almost surely, 218214310623020 is an apocalyptic number.

18214310623020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18214310623020 is an abundant number, since it is smaller than the sum of its proper divisors (33976841510100).

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

18214310623020 is a wasteful number, since it uses less digits than its factorization.

18214310623020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681095 (or 681093 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 18214310623020 in words is "eighteen trillion, two hundred fourteen billion, three hundred ten million, six hundred twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 10529 21058 31587 42116 52645 63174 105290 126348 157935 210580 315870 452747 631740 670511 905494 1341022 1358241 1810988 2011533 2263735 2682044 2716482 3352555 4023066 4527470 5432964 6705110 6791205 8046132 9054940 10057665 13410220 13582410 20115330 27164820 28831973 40230660 57663946 86495919 115327892 144159865 172991838 288319730 345983676 432479595 576639460 864959190 1729918380 7059810319 14119620638 21179430957 28239241276 35299051595 42358861914 70598103190 84717723828 105897154785 141196206380 211794309570 303571843717 423588619140 607143687434 910715531151 1214287374868 1517859218585 1821431062302 3035718437170 3642862124604 4553577655755 6071436874340 9107155311510 18214310623020