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13143244 = 2217193283
BaseRepresentation
bin110010001000…
…110011001100
3220201202010211
4302020303030
511331040434
61145412204
7216500332
oct62106314
926652124
1013143244
117467794
12449a064
13295248a
141a61b52
151249464
hexc88ccc

13143244 has 12 divisors (see below), whose sum is σ = 24353784. Its totient is φ = 6185024.

The previous prime is 13143241. The next prime is 13143257. The reversal of 13143244 is 44234131.

It is not an unprimeable number, because it can be changed into a prime (13143241) 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, 96574 + ... + 96709.

It is an arithmetic number, because the mean of its divisors is an integer number (2029482).

Almost surely, 213143244 is an apocalyptic number.

It is an amenable number.

13143244 is a deficient number, since it is larger than the sum of its proper divisors (11210540).

13143244 is a wasteful number, since it uses less digits than its factorization.

13143244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193304 (or 193302 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 13143244 is about 3625.3612233817. The cubic root of 13143244 is about 235.9939431559.

Adding to 13143244 its reverse (44234131), we get a palindrome (57377375).

The spelling of 13143244 in words is "thirteen million, one hundred forty-three thousand, two hundred forty-four".

Divisors: 1 2 4 17 34 68 193283 386566 773132 3285811 6571622 13143244