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18753111364 = 221322322292
BaseRepresentation
bin10001011101110001…
…011100010101000100
31210101221021202121011
4101131301130111010
5301401244030424
612340504132004
71232501550031
oct213561342504
953357252534
1018753111364
117a53708149
123774467004
1319cb277300
14c9c86c388
1574b56c694
hex45dc5c544

18753111364 has 81 divisors (see below), whose sum is σ = 37311767703. Its totient is φ = 8242812864.

The previous prime is 18753111353. The next prime is 18753111371. The reversal of 18753111364 is 46311135781.

The square root of 18753111364 is 136942.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 313644100 + 18439467264 = 17710^2 + 135792^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 81891202 + ... + 81891430.

Almost surely, 218753111364 is an apocalyptic number.

18753111364 is the 136942-nd square number.

It is an amenable number.

18753111364 is a deficient number, since it is larger than the sum of its proper divisors (18558656339).

18753111364 is a wasteful number, since it uses less digits than its factorization.

18753111364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 267 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The spelling of 18753111364 in words is "eighteen billion, seven hundred fifty-three million, one hundred eleven thousand, three hundred sixty-four".

Divisors: 1 2 4 13 23 26 46 52 92 169 229 299 338 458 529 598 676 916 1058 1196 2116 2977 3887 5267 5954 6877 7774 10534 11908 13754 15548 21068 27508 38701 52441 68471 77402 89401 104882 121141 136942 154804 178802 209764 242282 273884 357604 484564 681733 890123 1206143 1363466 1574833 1780246 2412286 2726932 3149666 3560492 4824572 6299332 8862529 15679859 17725058 20472829 27741289 31359718 35450116 40945658 55482578 62719436 81891316 110965156 203838167 360636757 407676334 721273514 815352668 1442547028 4688277841 9376555682 18753111364