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18360882140 = 22510950916547
BaseRepresentation
bin10001000110011001…
…001101001111011100
31202101121020110020212
4101012121031033130
5300100341212030
612233533231552
71216666631426
oct210631151734
952347213225
1018360882140
11787226a567
1236850325b8
131967c26a03
14c6272b816
15726de1595
hex44664d3dc

18360882140 has 48 divisors (see below), whose sum is σ = 38990397600. Its totient is φ = 7262237952.

The previous prime is 18360882131. The next prime is 18360882157. The reversal of 18360882140 is 4128806381.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1101347 + ... + 1117893.

It is an arithmetic number, because the mean of its divisors is an integer number (812299950).

Almost surely, 218360882140 is an apocalyptic number.

18360882140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18360882140 is an abundant number, since it is smaller than the sum of its proper divisors (20629515460).

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

18360882140 is a wasteful number, since it uses less digits than its factorization.

18360882140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17174 (or 17172 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 18360882140 in words is "eighteen billion, three hundred sixty million, eight hundred eighty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 109 218 436 509 545 1018 1090 2036 2180 2545 5090 10180 16547 33094 55481 66188 82735 110962 165470 221924 277405 330940 554810 1109620 1803623 3607246 7214492 8422423 9018115 16844846 18036230 33689692 36072460 42112115 84224230 168448460 918044107 1836088214 3672176428 4590220535 9180441070 18360882140