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12713223 = 319297691
BaseRepresentation
bin110000011111…
…110100000111
3212220220021010
4300133310013
511223310343
61132253303
7213026535
oct60376407
925826233
1012713223
1171a36a6
124311233
132831823
14198d155
1511b1d33
hexc1fd07

12713223 has 16 divisors (see below), whose sum is σ = 18460800. Its totient is φ = 7751520.

The previous prime is 12713221. The next prime is 12713231. The reversal of 12713223 is 32231721.

It is not a de Polignac number, because 12713223 - 21 = 12713221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12713223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2193 + ... + 5498.

It is an arithmetic number, because the mean of its divisors is an integer number (1153800).

Almost surely, 212713223 is an apocalyptic number.

12713223 is a deficient number, since it is larger than the sum of its proper divisors (5747577).

12713223 is a wasteful number, since it uses less digits than its factorization.

12713223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7742.

The product of its digits is 504, while the sum is 21.

The square root of 12713223 is about 3565.5606852219. The cubic root of 12713223 is about 233.3916001879.

Adding to 12713223 its reverse (32231721), we get a palindrome (44944944).

The spelling of 12713223 in words is "twelve million, seven hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 3 19 29 57 87 551 1653 7691 23073 146129 223039 438387 669117 4237741 12713223