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1223104103 = 1394084931
BaseRepresentation
bin100100011100111…
…0001011001100111
310011020111010101222
41020321301121213
510001103312403
6321211210555
742211133114
oct11071613147
93136433358
101223104103
11578457241
122a1746a5b
13166523750
14b862590b
15725a1338
hex48e71667

1223104103 has 4 divisors (see below), whose sum is σ = 1317189048. Its totient is φ = 1129019160.

The previous prime is 1223104067. The next prime is 1223104109. The reversal of 1223104103 is 3014013221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3014013221 = 4471167411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1223104103 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 (1223104109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47042453 + ... + 47042478.

It is an arithmetic number, because the mean of its divisors is an integer number (329297262).

Almost surely, 21223104103 is an apocalyptic number.

1223104103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1223104103 is a deficient number, since it is larger than the sum of its proper divisors (94084945).

1223104103 is an equidigital number, since it uses as much as digits as its factorization.

1223104103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94084944.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1223104103 is about 34972.9052696512. The cubic root of 1223104103 is about 1069.4351993452.

Adding to 1223104103 its reverse (3014013221), we get a palindrome (4237117324).

The spelling of 1223104103 in words is "one billion, two hundred twenty-three million, one hundred four thousand, one hundred three".

Divisors: 1 13 94084931 1223104103