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18142055217276 = 2239754715498559
BaseRepresentation
bin1000010000000000001101…
…10000011011100001111100
32101020100211000120101112020
410020000012300123201330
54334214412113423101
6102330202313240140
73551502016652124
oct410000660334174
971210730511466
1018142055217276
115865003231571
122050075703050
13a17a3334ca63
1446a119d49c84
15216db3248136
hex108006c1b87c

18142055217276 has 24 divisors (see below), whose sum is σ = 42331898864640. Its totient is φ = 6047289354672.

The previous prime is 18142055217269. The next prime is 18142055217317. The reversal of 18142055217276 is 67271255024181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6578716 + ... + 8919843.

It is an arithmetic number, because the mean of its divisors is an integer number (1763829119360).

Almost surely, 218142055217276 is an apocalyptic number.

It is an amenable number.

18142055217276 is an abundant number, since it is smaller than the sum of its proper divisors (24189843647364).

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

18142055217276 is a wasteful number, since it uses less digits than its factorization.

18142055217276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15596113 (or 15596111 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 18142055217276 in words is "eighteen trillion, one hundred forty-two billion, fifty-five million, two hundred seventeen thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 97547 195094 292641 390188 585282 1170564 15498559 30997118 46495677 61994236 92991354 185982708 1511837934773 3023675869546 4535513804319 6047351739092 9071027608638 18142055217276