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20182918382 = 2114173306517
BaseRepresentation
bin10010110010111111…
…101110010011101110
31221002120201111002122
4102302333232103232
5312313311342012
613134421552542
71313102655434
oct226277562356
957076644078
1020182918382
118617805340
123ab3275752
131b98560c73
14d966dcd54
157d1d4de72
hex4b2fee4ee

20182918382 has 32 divisors (see below), whose sum is σ = 34295685984. Its totient is φ = 8827660800.

The previous prime is 20182918351. The next prime is 20182918403. The reversal of 20182918382 is 28381928102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87413 + ... + 219104.

It is an arithmetic number, because the mean of its divisors is an integer number (1071740187).

Almost surely, 220182918382 is an apocalyptic number.

20182918382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20182918382 is a deficient number, since it is larger than the sum of its proper divisors (14112767602).

20182918382 is a wasteful number, since it uses less digits than its factorization.

20182918382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306644.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 20182918382 in words is "twenty billion, one hundred eighty-two million, nine hundred eighteen thousand, three hundred eighty-two".

Divisors: 1 2 11 22 41 73 82 146 451 803 902 1606 2993 5986 32923 65846 306517 613034 3371687 6743374 12567197 22375741 25134394 44751482 138239167 246133151 276478334 492266302 917405381 1834810762 10091459191 20182918382