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13444301413 = 35533378361
BaseRepresentation
bin11001000010101011…
…11100001001100101
31021200221211021102101
430201111330021211
5210013220121123
610102022012101
7654106451014
oct144125741145
937627737371
1013444301413
115779a59704
122732577031
13136345494a
14917782a7b
1553a466aad
hex32157c265

13444301413 has 4 divisors (see below), whose sum is σ = 13444715308. Its totient is φ = 13443887520.

The previous prime is 13444301393. The next prime is 13444301417. The reversal of 13444301413 is 31410344431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31410344431 = 64748547673.

It can be written as a sum of positive squares in 2 ways, for example, as 4768869249 + 8675432164 = 69057^2 + 93142^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444301413 - 213 = 13444293221 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 (13444301417) 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, 153648 + ... + 224713.

It is an arithmetic number, because the mean of its divisors is an integer number (3361178827).

Almost surely, 213444301413 is an apocalyptic number.

It is an amenable number.

13444301413 is a deficient number, since it is larger than the sum of its proper divisors (413895).

13444301413 is an equidigital number, since it uses as much as digits as its factorization.

13444301413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413894.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13444301413 its reverse (31410344431), we get a palindrome (44854645844).

The spelling of 13444301413 in words is "thirteen billion, four hundred forty-four million, three hundred one thousand, four hundred thirteen".

Divisors: 1 35533 378361 13444301413