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13531201103 = 71933028729
BaseRepresentation
bin11001001101000010…
…11011111001001111
31021221000100020101102
430212201123321033
5210202441413403
610114404333315
7656213211620
oct144641337117
937830306342
1013531201103
115814012732
1227576a423b
13137845c694
14925123a47
15542dceb88
hex32685be4f

13531201103 has 4 divisors (see below), whose sum is σ = 15464229840. Its totient is φ = 11598172368.

The previous prime is 13531201097. The next prime is 13531201111. The reversal of 13531201103 is 30110213531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30110213531 = 83362773657.

It is a cyclic number.

It is not a de Polignac number, because 13531201103 - 212 = 13531197007 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 (13531201403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966514358 + ... + 966514371.

It is an arithmetic number, because the mean of its divisors is an integer number (3866057460).

Almost surely, 213531201103 is an apocalyptic number.

13531201103 is a deficient number, since it is larger than the sum of its proper divisors (1933028737).

13531201103 is an equidigital number, since it uses as much as digits as its factorization.

13531201103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933028736.

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 13531201103 its reverse (30110213531), we get a palindrome (43641414634).

The spelling of 13531201103 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, one hundred three".

Divisors: 1 7 1933028729 13531201103