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13144542 = 2319115303
BaseRepresentation
bin110010001001…
…000111011110
3220201210220220
4302021013132
511331111132
61145422210
7216504165
oct62110736
926653826
1013144542
117468764
12449a966
132952c48
141a623dc
151249a2c
hexc891de

13144542 has 16 divisors (see below), whose sum is σ = 27672960. Its totient is φ = 4150872.

The previous prime is 13144531. The next prime is 13144543. The reversal of 13144542 is 24544131.

13144542 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57538 + ... + 57765.

It is an arithmetic number, because the mean of its divisors is an integer number (1729560).

Almost surely, 213144542 is an apocalyptic number.

13144542 is an abundant number, since it is smaller than the sum of its proper divisors (14528418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13144542 is a wasteful number, since it uses less digits than its factorization.

13144542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115327.

The product of its digits is 1920, while the sum is 24.

The square root of 13144542 is about 3625.5402356063. The cubic root of 13144542 is about 236.0017116605.

Adding to 13144542 its reverse (24544131), we get a palindrome (37688673).

The spelling of 13144542 in words is "thirteen million, one hundred forty-four thousand, five hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 115303 230606 345909 691818 2190757 4381514 6572271 13144542