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13305413 = 111209583
BaseRepresentation
bin110010110000…
…011001000101
3221000222121002
4302300121011
511401233123
61153103045
7221044202
oct62603105
927028532
1013305413
117568610
124557a85
1329ab234
141aa4ca9
15127c528
hexcb0645

13305413 has 4 divisors (see below), whose sum is σ = 14515008. Its totient is φ = 12095820.

The previous prime is 13305389. The next prime is 13305421. The reversal of 13305413 is 31450331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31450331 = 112859121.

It is not a de Polignac number, because 13305413 - 26 = 13305349 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 (13305473) 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, 604781 + ... + 604802.

It is an arithmetic number, because the mean of its divisors is an integer number (3628752).

Almost surely, 213305413 is an apocalyptic number.

It is an amenable number.

13305413 is a deficient number, since it is larger than the sum of its proper divisors (1209595).

13305413 is a wasteful number, since it uses less digits than its factorization.

13305413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209594.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13305413 is about 3647.6585640654. The cubic root of 13305413 is about 236.9605885553.

Adding to 13305413 its reverse (31450331), we get a palindrome (44755744).

The spelling of 13305413 in words is "thirteen million, three hundred five thousand, four hundred thirteen".

Divisors: 1 11 1209583 13305413