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55124443 = 115011313
BaseRepresentation
bin1101001001001…
…0000111011011
310211201121112001
43102102013123
5103102440233
65245301431
71236356443
oct322220733
9124647461
1055124443
11291308a0
1216564877
13b560a1a
14746d123
154c8d27d
hex34921db

55124443 has 4 divisors (see below), whose sum is σ = 60135768. Its totient is φ = 50113120.

The previous prime is 55124441. The next prime is 55124449. The reversal of 55124443 is 34442155.

55124443 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 not a de Polignac number, because 55124443 - 21 = 55124441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55124441) 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, 2505646 + ... + 2505667.

It is an arithmetic number, because the mean of its divisors is an integer number (15033942).

Almost surely, 255124443 is an apocalyptic number.

55124443 is a deficient number, since it is larger than the sum of its proper divisors (5011325).

55124443 is a wasteful number, since it uses less digits than its factorization.

55124443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011324.

The product of its digits is 9600, while the sum is 28.

The square root of 55124443 is about 7424.5836920328. The cubic root of 55124443 is about 380.5818487036.

Adding to 55124443 its reverse (34442155), we get a palindrome (89566598).

The spelling of 55124443 in words is "fifty-five million, one hundred twenty-four thousand, four hundred forty-three".

Divisors: 1 11 5011313 55124443