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55348615 = 571983231
BaseRepresentation
bin1101001100100…
…0110110000111
310212011000000201
43103020312013
5103132123430
65254151331
71241312140
oct323106607
9125130021
1055348615
1129274263
1216652547
13b60ba7a
1474caac7
154cd48ca
hex34c8d87

55348615 has 16 divisors (see below), whose sum is σ = 79902720. Its totient is φ = 35955360.

The previous prime is 55348561. The next prime is 55348619. The reversal of 55348615 is 51684355.

55348615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55348615 - 27 = 55348487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55348619) 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 15 ways as a sum of consecutive naturals, for example, 40951 + ... + 42280.

It is an arithmetic number, because the mean of its divisors is an integer number (4993920).

Almost surely, 255348615 is an apocalyptic number.

55348615 is a deficient number, since it is larger than the sum of its proper divisors (24554105).

55348615 is a wasteful number, since it uses less digits than its factorization.

55348615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83262.

The product of its digits is 72000, while the sum is 37.

The square root of 55348615 is about 7439.6649790162. The cubic root of 55348615 is about 381.0970491011.

The spelling of 55348615 in words is "fifty-five million, three hundred forty-eight thousand, six hundred fifteen".

Divisors: 1 5 7 19 35 95 133 665 83231 416155 582617 1581389 2913085 7906945 11069723 55348615