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55345343 = 431287101
BaseRepresentation
bin1101001100100…
…0000010111111
310212010211112112
43103020002333
5103132022333
65254124235
71241266454
oct323100277
9125124475
1055345343
1129271859
121665067b
13b60a431
1474c982b
154cd3948
hex34c80bf

55345343 has 4 divisors (see below), whose sum is σ = 56632488. Its totient is φ = 54058200.

The previous prime is 55345331. The next prime is 55345351. The reversal of 55345343 is 34354355.

55345343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55345343 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 (55345243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643508 + ... + 643593.

It is an arithmetic number, because the mean of its divisors is an integer number (14158122).

Almost surely, 255345343 is an apocalyptic number.

55345343 is a deficient number, since it is larger than the sum of its proper divisors (1287145).

55345343 is a wasteful number, since it uses less digits than its factorization.

55345343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287144.

The product of its digits is 54000, while the sum is 32.

The square root of 55345343 is about 7439.4450733909. The cubic root of 55345343 is about 381.0895392829.

Adding to 55345343 its reverse (34354355), we get a palindrome (89699698).

The spelling of 55345343 in words is "fifty-five million, three hundred forty-five thousand, three hundred forty-three".

Divisors: 1 43 1287101 55345343