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13146205 = 57336017
BaseRepresentation
bin110010001001…
…100001011101
3220201220012111
4302021201131
511331134310
61145434021
7216512062
oct62114135
926656174
1013146205
117469a36
12449b911
132953927
141a62c69
15124a28a
hexc8985d

13146205 has 8 divisors (see below), whose sum is σ = 15991992. Its totient is φ = 10372608.

The previous prime is 13146197. The next prime is 13146209. The reversal of 13146205 is 50264131.

It can be written as a sum of positive squares in 4 ways, for example, as 1674436 + 11471769 = 1294^2 + 3387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13146205 - 23 = 13146197 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 (13146209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17644 + ... + 18373.

It is an arithmetic number, because the mean of its divisors is an integer number (1998999).

Almost surely, 213146205 is an apocalyptic number.

It is an amenable number.

13146205 is a deficient number, since it is larger than the sum of its proper divisors (2845787).

13146205 is an equidigital number, since it uses as much as digits as its factorization.

13146205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36095.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13146205 is about 3625.7695734837. The cubic root of 13146205 is about 236.0116639356.

The spelling of 13146205 in words is "thirteen million, one hundred forty-six thousand, two hundred five".

Divisors: 1 5 73 365 36017 180085 2629241 13146205