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13530212315 = 52706042463
BaseRepresentation
bin11001001100111011…
…01010011111011011
31021220221111000000122
430212131222133123
5210202213243230
610114331223455
7656201623064
oct144635523733
937827430018
1013530212315
1158134a7854
1227572a7b8b
1313781a45b9
14924d4756b
15542c86be5
hex32676a7db

13530212315 has 4 divisors (see below), whose sum is σ = 16236254784. Its totient is φ = 10824169848.

The previous prime is 13530212287. The next prime is 13530212317. The reversal of 13530212315 is 51321203531.

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 13530212315 - 26 = 13530212251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13530212317) 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, 1353021227 + ... + 1353021236.

It is an arithmetic number, because the mean of its divisors is an integer number (4059063696).

Almost surely, 213530212315 is an apocalyptic number.

13530212315 is a deficient number, since it is larger than the sum of its proper divisors (2706042469).

13530212315 is an equidigital number, since it uses as much as digits as its factorization.

13530212315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706042468.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 13530212315 its reverse (51321203531), we get a palindrome (64851415846).

The spelling of 13530212315 in words is "thirteen billion, five hundred thirty million, two hundred twelve thousand, three hundred fifteen".

Divisors: 1 5 2706042463 13530212315