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18440371341 = 3272675711093
BaseRepresentation
bin10001001011001000…
…011011110010001101
31202121010210220221100
4101023020123302031
5300231213340331
612245453053313
71221653366400
oct211310336215
952533726840
1018440371341
117903121a17
1236a7787239
13197b538742
14c6d0ddd37
1572dd93ae6
hex44b21bc8d

18440371341 has 72 divisors (see below), whose sum is σ = 31531197984. Its totient is φ = 10352422080.

The previous prime is 18440371319. The next prime is 18440371441. The reversal of 18440371341 is 14317304481.

18440371341 is a `hidden beast` number, since 184 + 403 + 71 + 3 + 4 + 1 = 666.

It is not a de Polignac number, because 18440371341 - 26 = 18440371277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18440371296 and 18440371305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18440371241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16870791 + ... + 16871883.

Almost surely, 218440371341 is an apocalyptic number.

It is an amenable number.

18440371341 is a deficient number, since it is larger than the sum of its proper divisors (13090826643).

18440371341 is a wasteful number, since it uses less digits than its factorization.

18440371341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1741 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 18440371341 in words is "eighteen billion, four hundred forty million, three hundred seventy-one thousand, three hundred forty-one".

Divisors: 1 3 7 9 21 49 63 67 147 201 441 469 571 603 1093 1407 1713 3279 3283 3997 4221 5139 7651 9837 9849 11991 22953 27979 29547 35973 38257 53557 68859 73231 83937 114771 160671 219693 251811 267799 344313 482013 512617 624103 659079 803397 1537851 1872309 1874593 2410191 3588319 4368721 4613553 5616927 5623779 10764957 13106163 16871337 30581047 32294871 39318489 41814901 91743141 125444703 275229423 292704307 376334109 878112921 2048930149 2634338763 6146790447 18440371341