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18920066301 = 328532464513
BaseRepresentation
bin10001100111101110…
…010100110011111101
31210211120102221201100
4101213232110303331
5302222014110201
612405230403313
71236566624103
oct214756246375
953746387640
1018920066301
11802997a934
123800360539
131a26a31606
14cb6acbc73
1575b04a886
hex467b94cfd

18920066301 has 12 divisors (see below), whose sum is σ = 27361034428. Its totient is φ = 12598585344.

The previous prime is 18920066287. The next prime is 18920066323. The reversal of 18920066301 is 10366002981.

18920066301 is a `hidden beast` number, since 18 + 9 + 2 + 0 + 0 + 6 + 630 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 670758201 + 18249308100 = 25899^2 + 135090^2 .

It is not a de Polignac number, because 18920066301 - 219 = 18919542013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18920067301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224580 + ... + 1239933.

Almost surely, 218920066301 is an apocalyptic number.

It is an amenable number.

18920066301 is a deficient number, since it is larger than the sum of its proper divisors (8440968127).

18920066301 is a wasteful number, since it uses less digits than its factorization.

18920066301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465372 (or 2465369 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 18920066301 in words is "eighteen billion, nine hundred twenty million, sixty-six thousand, three hundred one".

Divisors: 1 3 9 853 2559 7677 2464513 7393539 22180617 2102229589 6306688767 18920066301