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13542303131 = 71934614733
BaseRepresentation
bin11001001110010111…
…10010010110011011
31021221210020021111122
430213023302112123
5210213312200011
610115442315455
7656406451220
oct144713622633
937853207448
1013542303131
11581a305865
12275b358b8b
13137a848a26
149267b3947
15543d743db
hex3272f259b

13542303131 has 4 divisors (see below), whose sum is σ = 15476917872. Its totient is φ = 11607688392.

The previous prime is 13542303127. The next prime is 13542303223. The reversal of 13542303131 is 13130324531.

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 13542303131 - 22 = 13542303127 is a prime.

It is a super-2 number, since 2×135423031312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13542303131.

It is not an unprimeable number, because it can be changed into a prime (13542303031) 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, 967307360 + ... + 967307373.

It is an arithmetic number, because the mean of its divisors is an integer number (3869229468).

Almost surely, 213542303131 is an apocalyptic number.

13542303131 is a deficient number, since it is larger than the sum of its proper divisors (1934614741).

13542303131 is an equidigital number, since it uses as much as digits as its factorization.

13542303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934614740.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 13542303131 its reverse (13130324531), we get a palindrome (26672627662).

The spelling of 13542303131 in words is "thirteen billion, five hundred forty-two million, three hundred three thousand, one hundred thirty-one".

Divisors: 1 7 1934614733 13542303131