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13144052 = 223286013
BaseRepresentation
bin110010001000…
…111111110100
3220201210020202
4302020333310
511331102202
61145420032
7216502565
oct62107764
926653222
1013144052
117468359
12449a618
13295295c
141a6216c
151249802
hexc88ff4

13144052 has 6 divisors (see below), whose sum is σ = 23002098. Its totient is φ = 6572024.

The previous prime is 13144051. The next prime is 13144057. The reversal of 13144052 is 25044131.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 155236 = 3604^2 + 394^2 .

It is a super-2 number, since 2×131440522 = 345532205957408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144051) 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 as a sum of consecutive naturals, namely, 1643003 + ... + 1643010.

It is an arithmetic number, because the mean of its divisors is an integer number (3833683).

Almost surely, 213144052 is an apocalyptic number.

It is an amenable number.

13144052 is a deficient number, since it is larger than the sum of its proper divisors (9858046).

13144052 is a wasteful number, since it uses less digits than its factorization.

13144052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286017 (or 3286015 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13144052 is about 3625.4726588405. The cubic root of 13144052 is about 235.9987790802.

Adding to 13144052 its reverse (25044131), we get a palindrome (38188183).

The spelling of 13144052 in words is "thirteen million, one hundred forty-four thousand, fifty-two".

Divisors: 1 2 4 3286013 6572026 13144052