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18668052335 = 537317318323
BaseRepresentation
bin10001011000101100…
…111101111101101111
31210012000020022112202
4101120230331331233
5301213010133320
612324225052115
71230416553362
oct213054757557
953160208482
1018668052335
117a0a6a1029
12374ba8703b
1319b676531a
14c9144a0d9
15743d69b75
hex458b3df6f

18668052335 has 16 divisors (see below), whose sum is σ = 23079763296. Its totient is φ = 14484924288.

The previous prime is 18668052329. The next prime is 18668052433. The reversal of 18668052335 is 53325086681.

It is a cyclic number.

It is not a de Polignac number, because 18668052335 - 230 = 17594310511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18668052335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100517 + ... + 217806.

It is an arithmetic number, because the mean of its divisors is an integer number (1442485206).

Almost surely, 218668052335 is an apocalyptic number.

18668052335 is a deficient number, since it is larger than the sum of its proper divisors (4411710961).

18668052335 is a wasteful number, since it uses less digits than its factorization.

18668052335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318682.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 18668052335 in words is "eighteen billion, six hundred sixty-eight million, fifty-two thousand, three hundred thirty-five".

Divisors: 1 5 37 185 317 1585 11729 58645 318323 1591615 11777951 58889755 100908391 504541955 3733610467 18668052335