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13425727 = 71917961
BaseRepresentation
bin110011001101…
…110000111111
3221021002122011
4303031300333
511414110402
61155432051
7222055030
oct63156077
927232564
1013425727
11763aa47
1245b5627
132a20c23
141ad6a87
1512a2ed7
hexccdc3f

13425727 has 4 divisors (see below), whose sum is σ = 15343696. Its totient is φ = 11507760.

The previous prime is 13425707. The next prime is 13425749. The reversal of 13425727 is 72752431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72752431 = 431691917.

It is a cyclic number.

It is not a de Polignac number, because 13425727 - 211 = 13423679 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 (13425707) 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, 958974 + ... + 958987.

It is an arithmetic number, because the mean of its divisors is an integer number (3835924).

Almost surely, 213425727 is an apocalyptic number.

13425727 is a deficient number, since it is larger than the sum of its proper divisors (1917969).

13425727 is an equidigital number, since it uses as much as digits as its factorization.

13425727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917968.

The product of its digits is 11760, while the sum is 31.

The square root of 13425727 is about 3664.1133989002. The cubic root of 13425727 is about 237.6726840156.

The spelling of 13425727 in words is "thirteen million, four hundred twenty-five thousand, seven hundred twenty-seven".

Divisors: 1 7 1917961 13425727