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13225230 = 2325236389
BaseRepresentation
bin110010011100…
…110100001110
3220212220121100
4302130310032
511341201410
61151243530
7220261344
oct62346416
926786540
1013225230
117513347
1245195a6
1329808a5
141a83994
1512638c0
hexc9cd0e

13225230 has 48 divisors (see below), whose sum is σ = 35886240. Its totient is φ = 3372864.

The previous prime is 13225229. The next prime is 13225237. The reversal of 13225230 is 3252231.

13225230 is digitally balanced in base 2, because in such base 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1125 + ... + 5264.

It is an arithmetic number, because the mean of its divisors is an integer number (747630).

Almost surely, 213225230 is an apocalyptic number.

13225230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13225230 is an abundant number, since it is smaller than the sum of its proper divisors (22661010).

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

13225230 is a wasteful number, since it uses less digits than its factorization.

13225230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425 (or 6422 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13225230 is about 3636.6509318327. The cubic root of 13225230 is about 236.4836271251.

Adding to 13225230 its reverse (3252231), we get a palindrome (16477461).

The spelling of 13225230 in words is "thirteen million, two hundred twenty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 207 230 345 414 690 1035 2070 6389 12778 19167 31945 38334 57501 63890 95835 115002 146947 191670 287505 293894 440841 575010 734735 881682 1322523 1469470 2204205 2645046 4408410 6612615 13225230