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13413517 = 131031809
BaseRepresentation
bin110011001010…
…110010001101
3221020110212221
4303022302031
511413213032
61155255341
7222004315
oct63126215
927213787
1013413517
117631857
1245aa551
132a184c0
141ad2445
15129e597
hexccac8d

13413517 has 4 divisors (see below), whose sum is σ = 14445340. Its totient is φ = 12381696.

The previous prime is 13413511. The next prime is 13413523. The reversal of 13413517 is 71531431.

13413517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13413511) and next prime (13413523).

It can be written as a sum of positive squares in 2 ways, for example, as 5410276 + 8003241 = 2326^2 + 2829^2 .

It is a cyclic number.

It is not a de Polignac number, because 13413517 - 215 = 13380749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13413491 and 13413500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13413511) 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, 515892 + ... + 515917.

It is an arithmetic number, because the mean of its divisors is an integer number (3611335).

Almost surely, 213413517 is an apocalyptic number.

It is an amenable number.

13413517 is a deficient number, since it is larger than the sum of its proper divisors (1031823).

13413517 is a wasteful number, since it uses less digits than its factorization.

13413517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031822.

The product of its digits is 1260, while the sum is 25.

The square root of 13413517 is about 3662.4468596827. The cubic root of 13413517 is about 237.6006118502.

Adding to 13413517 its reverse (71531431), we get a palindrome (84944948).

The spelling of 13413517 in words is "thirteen million, four hundred thirteen thousand, five hundred seventeen".

Divisors: 1 13 1031809 13413517