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12238263 = 33453269
BaseRepresentation
bin101110101011…
…110110110111
3212000202202000
4232223312313
511113111023
61114150343
7206011032
oct56536667
925022660
1012238263
1169a9874
1241223b3
1326c659b
1418a8019
15111b243
hexbabdb7

12238263 has 8 divisors (see below), whose sum is σ = 18130800. Its totient is φ = 8158824.

The previous prime is 12238253. The next prime is 12238279. The reversal of 12238263 is 36283221.

It is not a de Polignac number, because 12238263 - 220 = 11189687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 453269 = 12238263 / (1 + 2 + 2 + 3 + 8 + 2 + 6 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226608 + ... + 226661.

It is an arithmetic number, because the mean of its divisors is an integer number (2266350).

Almost surely, 212238263 is an apocalyptic number.

12238263 is a deficient number, since it is larger than the sum of its proper divisors (5892537).

12238263 is an equidigital number, since it uses as much as digits as its factorization.

12238263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453278 (or 453272 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 12238263 is about 3498.3228838974. The cubic root of 12238263 is about 230.4481683687.

The spelling of 12238263 in words is "twelve million, two hundred thirty-eight thousand, two hundred sixty-three".

Divisors: 1 3 9 27 453269 1359807 4079421 12238263