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115215101413 = 262501438913
BaseRepresentation
bin110101101001101011…
…0101110110111100101
3102000101112112120121021
41223103112232313211
53341430031221123
6124532403251141
711216065126516
oct1532326566745
9360345476537
10115215101413
1144953a14a85
121a3b5379ab1
13ab31a9c629
14580da78a0d
152ee4d8cc5d
hex1ad35aede5

115215101413 has 4 divisors (see below), whose sum is σ = 115215802828. Its totient is φ = 115214400000.

The previous prime is 115215101381. The next prime is 115215101423. The reversal of 115215101413 is 314101512511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 64952600164 + 50262501249 = 254858^2 + 224193^2 .

It is a cyclic number.

It is not a de Polignac number, because 115215101413 - 25 = 115215101381 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 (115215101423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43045 + ... + 481957.

It is an arithmetic number, because the mean of its divisors is an integer number (28803950707).

Almost surely, 2115215101413 is an apocalyptic number.

It is an amenable number.

115215101413 is a deficient number, since it is larger than the sum of its proper divisors (701415).

115215101413 is an equidigital number, since it uses as much as digits as its factorization.

115215101413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701414.

The product of its (nonzero) digits is 600, while the sum is 25.

Adding to 115215101413 its reverse (314101512511), we get a palindrome (429316613924).

The spelling of 115215101413 in words is "one hundred fifteen billion, two hundred fifteen million, one hundred one thousand, four hundred thirteen".

Divisors: 1 262501 438913 115215101413