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13551905741 = 112111999221
BaseRepresentation
bin11001001111100000…
…11010101111001101
31021222110022010210212
430213300122233031
5210223241440431
610120424212205
7656554204163
oct144760325715
937873263725
1013551905741
115824774400
12276260a065
13137c82b74a
14927b93233
15544b1e72b
hex327c1abcd

13551905741 has 6 divisors (see below), whose sum is σ = 14895896526. Its totient is φ = 12319914200.

The previous prime is 13551905707. The next prime is 13551905749. The reversal of 13551905741 is 14750915531.

It can be written as a sum of positive squares in only one way, i.e., 9831515716 + 3720390025 = 99154^2 + 60995^2 .

It is not a de Polignac number, because 13551905741 - 214 = 13551889357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13551905749) 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 5 ways as a sum of consecutive naturals, for example, 55999490 + ... + 55999731.

It is an arithmetic number, because the mean of its divisors is an integer number (2482649421).

Almost surely, 213551905741 is an apocalyptic number.

13551905741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13551905741 is a deficient number, since it is larger than the sum of its proper divisors (1343990785).

13551905741 is a wasteful number, since it uses less digits than its factorization.

13551905741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111999243 (or 111999232 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 41.

The spelling of 13551905741 in words is "thirteen billion, five hundred fifty-one million, nine hundred five thousand, seven hundred forty-one".

Divisors: 1 11 121 111999221 1231991431 13551905741