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13230552 = 2333117783
BaseRepresentation
bin110010011110…
…000111011000
3220220011220110
4302132013120
511341334202
61151324320
7220313016
oct62360730
926804813
1013230552
117517345
1245206a0
13298313a
141a858b6
15126526c
hexc9e1d8

13230552 has 32 divisors (see below), whose sum is σ = 34145280. Its totient is φ = 4267680.

The previous prime is 13230551. The next prime is 13230559. The reversal of 13230552 is 25503231.

13230552 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 (13230551) 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, 8148 + ... + 9635.

It is an arithmetic number, because the mean of its divisors is an integer number (1067040).

Almost surely, 213230552 is an apocalyptic number.

13230552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13230552 is an abundant number, since it is smaller than the sum of its proper divisors (20914728).

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

13230552 is a wasteful number, since it uses less digits than its factorization.

13230552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17823 (or 17819 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 13230552 is about 3637.3825754243. The cubic root of 13230552 is about 236.5153442063.

Adding to 13230552 its reverse (25503231), we get a palindrome (38733783).

The spelling of 13230552 in words is "thirteen million, two hundred thirty thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 17783 35566 53349 71132 106698 142264 213396 426792 551273 1102546 1653819 2205092 3307638 4410184 6615276 13230552