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1300055 = 5260011
BaseRepresentation
bin100111101011001010111
32110001100012
410331121113
5313100210
643510435
714023151
oct4753127
92401305
101300055
11808829
1252841b
13366983
1425bad1
151aa305
hex13d657

1300055 has 4 divisors (see below), whose sum is σ = 1560072. Its totient is φ = 1040040.

The previous prime is 1300051. The next prime is 1300073. The reversal of 1300055 is 5500031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5500031 = 10950459.

It is not a de Polignac number, because 1300055 - 22 = 1300051 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 (1300051) 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, 130001 + ... + 130010.

It is an arithmetic number, because the mean of its divisors is an integer number (390018).

21300055 is an apocalyptic number.

1300055 is a deficient number, since it is larger than the sum of its proper divisors (260017).

1300055 is an equidigital number, since it uses as much as digits as its factorization.

1300055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260016.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 1300055 is about 1140.1995439396. The cubic root of 1300055 is about 109.1408274282.

Adding to 1300055 its reverse (5500031), we get a palindrome (6800086).

The spelling of 1300055 in words is "one million, three hundred thousand, fifty-five".

Divisors: 1 5 260011 1300055