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18510084274 = 2112713104677
BaseRepresentation
bin10001001111010010…
…010111100010110010
31202202222222201002211
4101033102113202302
5300402040144044
612300423202334
71223461056163
oct211722274262
952688881084
1018510084274
117939507310
123706ba63aa
13198cb066b6
14c7848976a
15735064634
hex44f4978b2

18510084274 has 16 divisors (see below), whose sum is σ = 30401006976. Its totient is φ = 8382625200.

The previous prime is 18510084199. The next prime is 18510084277. The reversal of 18510084274 is 47248001581.

It is not an unprimeable number, because it can be changed into a prime (18510084277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546377 + ... + 1558300.

It is an arithmetic number, because the mean of its divisors is an integer number (1900062936).

Almost surely, 218510084274 is an apocalyptic number.

18510084274 is a deficient number, since it is larger than the sum of its proper divisors (11890922702).

18510084274 is a wasteful number, since it uses less digits than its factorization.

18510084274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104961.

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 18510084274 in words is "eighteen billion, five hundred ten million, eighty-four thousand, two hundred seventy-four".

Divisors: 1 2 11 22 271 542 2981 5962 3104677 6209354 34151447 68302894 841367467 1682734934 9255042137 18510084274