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13243230 = 2335731113
BaseRepresentation
bin110010100001…
…001101011110
3220220211022000
4302201031132
511342240410
61151503130
7220365000
oct62411536
926824260
1013243230
117525920
124527aa6
132988b40
141a8a370
151268dc0
hexca135e

13243230 has 256 divisors, whose sum is σ = 48384000. Its totient is φ = 2540160.

The previous prime is 13243213. The next prime is 13243253. The reversal of 13243230 is 3234231.

13243230 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 Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1018704 + ... + 1018716.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

Almost surely, 213243230 is an apocalyptic number.

13243230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13243230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24192000).

13243230 is an abundant number, since it is smaller than the sum of its proper divisors (35140770).

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

13243230 is a wasteful number, since it uses less digits than its factorization.

13243230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13243230 is about 3639.1248948064. The cubic root of 13243230 is about 236.5908659803.

Adding to 13243230 its reverse (3234231), we get a palindrome (16477461).

It can be divided in two parts, 1324 and 3230, that added together give a palindrome (4554).

The spelling of 13243230 in words is "thirteen million, two hundred forty-three thousand, two hundred thirty".