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18109630414 = 236737965099
BaseRepresentation
bin10000110111011010…
…110000011111001110
31201202002110112200101
4100313122300133032
5244042031133124
612153000121314
71210526214211
oct206732603716
951662415611
1018109630414
117753461407
123614a6623a
131927b66655
14c3b207778
1570ed11644
hex4376b07ce

18109630414 has 16 divisors (see below), whose sum is σ = 27310752000. Its totient is φ = 9006178104.

The previous prime is 18109630411. The next prime is 18109630421. The reversal of 18109630414 is 41403690181.

It is a super-2 number, since 2×181096304142 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18109630411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245637 + ... + 310735.

It is an arithmetic number, because the mean of its divisors is an integer number (1706922000).

Almost surely, 218109630414 is an apocalyptic number.

18109630414 is a deficient number, since it is larger than the sum of its proper divisors (9201121586).

18109630414 is a wasteful number, since it uses less digits than its factorization.

18109630414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65847.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 18109630414 in words is "eighteen billion, one hundred nine million, six hundred thirty thousand, four hundred fourteen".

Divisors: 1 2 367 379 734 758 65099 130198 139093 278186 23891333 24672521 47782666 49345042 9054815207 18109630414