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18384847404141 = 36128282468047
BaseRepresentation
bin1000010111000100011100…
…10011000111110001101101
32102002120111121220101211110
410023202032103013301231
54402204131413413031
6103033514324342233
73605155441334331
oct413421623076155
972076447811743
1018384847404141
115948a74082059
12208b134244979
13a348b704435a
14477b8d3877c1
1521d373398c46
hex10b88e4c7c6d

18384847404141 has 4 divisors (see below), whose sum is σ = 24513129872192. Its totient is φ = 12256564936092.

The previous prime is 18384847404127. The next prime is 18384847404151. The reversal of 18384847404141 is 14140474848381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18384847404141 - 214 = 18384847387757 is a prime.

It is a super-2 number, since 2×183848474041412 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18384847404101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064141234021 + ... + 3064141234026.

It is an arithmetic number, because the mean of its divisors is an integer number (6128282468048).

Almost surely, 218384847404141 is an apocalyptic number.

It is an amenable number.

18384847404141 is a deficient number, since it is larger than the sum of its proper divisors (6128282468051).

18384847404141 is an equidigital number, since it uses as much as digits as its factorization.

18384847404141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128282468050.

The product of its (nonzero) digits is 11010048, while the sum is 57.

The spelling of 18384847404141 in words is "eighteen trillion, three hundred eighty-four billion, eight hundred forty-seven million, four hundred four thousand, one hundred forty-one".

Divisors: 1 3 6128282468047 18384847404141