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12230253 = 327227733
BaseRepresentation
bin101110101001…
…111001101101
3212000100202100
4232221321231
511112332003
61114045313
7205645500
oct56517155
925010670
1012230253
1169a3852
124119839
1326c2a49
1418a5137
151118ba3
hexba9e6d

12230253 has 18 divisors (see below), whose sum is σ = 20550894. Its totient is φ = 6988464.

The previous prime is 12230233. The next prime is 12230353. The reversal of 12230253 is 35203221.

It can be written as a sum of positive squares in only one way, i.e., 8892324 + 3337929 = 2982^2 + 1827^2 .

It is not a de Polignac number, because 12230253 - 25 = 12230221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230233) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13426 + ... + 14307.

Almost surely, 212230253 is an apocalyptic number.

It is an amenable number.

12230253 is a deficient number, since it is larger than the sum of its proper divisors (8320641).

12230253 is a wasteful number, since it uses less digits than its factorization.

12230253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27753 (or 27743 counting only the distinct ones).

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

The square root of 12230253 is about 3497.1778622198. The cubic root of 12230253 is about 230.3978809303.

Adding to 12230253 its reverse (35203221), we get a palindrome (47433474).

The spelling of 12230253 in words is "twelve million, two hundred thirty thousand, two hundred fifty-three".

Divisors: 1 3 7 9 21 49 63 147 441 27733 83199 194131 249597 582393 1358917 1747179 4076751 12230253