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18260677068 = 2234770146187
BaseRepresentation
bin10001000000011010…
…111101000111001100
31202010121200111201220
4101000122331013030
5244344213131233
612215553403340
71214342123364
oct210032750714
952117614656
1018260677068
117820748a57
123657569550
131950240a7a
14c532c59a4
1571d1eaeb3
hex4406bd1cc

18260677068 has 48 divisors (see below), whose sum is σ = 43577823744. Its totient is φ = 5948756800.

The previous prime is 18260677067. The next prime is 18260677079. The reversal of 18260677068 is 86077606281.

It is a self number, because there is not a number n which added to its sum of digits gives 18260677068.

It is not an unprimeable number, because it can be changed into a prime (18260677067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372271 + ... + 418457.

It is an arithmetic number, because the mean of its divisors is an integer number (907871328).

Almost surely, 218260677068 is an apocalyptic number.

It is an amenable number.

18260677068 is an abundant number, since it is smaller than the sum of its proper divisors (25317146676).

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

18260677068 is a wasteful number, since it uses less digits than its factorization.

18260677068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46942 (or 46940 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 18260677068 in words is "eighteen billion, two hundred sixty million, six hundred seventy-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 701 1402 2103 2804 4206 8412 32947 46187 65894 92374 98841 131788 138561 184748 197682 277122 395364 554244 2170789 4341578 6512367 8683156 13024734 26049468 32377087 64754174 97131261 129508348 194262522 388525044 1521723089 3043446178 4565169267 6086892356 9130338534 18260677068