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18108327064212 = 22337211244816311
BaseRepresentation
bin1000001111000001011000…
…11001101111001010010100
32101010010202110002200121000
410013200230121233022110
54333141323212023322
6102302503422023300
73546166140252300
oct407405431571224
971103673080530
1018108327064212
1158517755a9a00
122045622117b30
13a147b9787938
1446863a712d00
1521608c1963ac
hex10782c66f294

18108327064212 has 432 divisors, whose sum is σ = 60051432309120. Its totient is φ = 4701666816000.

The previous prime is 18108327064211. The next prime is 18108327064213. The reversal of 18108327064212 is 21246072380181.

18108327064212 is a `hidden beast` number, since 1 + 8 + 108 + 3 + 270 + 64 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (18108327064211) and next prime (18108327064213).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18108327064211) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2869324537 + ... + 2869330847.

It is an arithmetic number, because the mean of its divisors is an integer number (139007945160).

Almost surely, 218108327064212 is an apocalyptic number.

18108327064212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18108327064212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30025716154560).

18108327064212 is an abundant number, since it is smaller than the sum of its proper divisors (41943105244908).

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

18108327064212 is a wasteful number, since it uses less digits than its factorization.

18108327064212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10841 (or 10815 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 18108327064212 in words is "eighteen trillion, one hundred eight billion, three hundred twenty-seven million, sixty-four thousand, two hundred twelve".