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12133230 = 2351972053
BaseRepresentation
bin101110010010…
…001101101110
3211211102122220
4232102031232
511101230410
61112020210
7205062564
oct56221556
924742586
1012133230
11693796a
124091666
13268a835
14187ba34
1510ea070
hexb9236e

12133230 has 32 divisors (see below), whose sum is σ = 29281824. Its totient is φ = 3217536.

The previous prime is 12133217. The next prime is 12133241. The reversal of 12133230 is 3233121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4884 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (915057).

Almost surely, 212133230 is an apocalyptic number.

12133230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12133230 is an abundant number, since it is smaller than the sum of its proper divisors (17148594).

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

12133230 is a wasteful number, since it uses less digits than its factorization.

12133230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12133230 is about 3483.2786279596. The cubic root of 12133230 is about 229.7870113951.

Adding to 12133230 its reverse (3233121), we get a palindrome (15366351).

The spelling of 12133230 in words is "twelve million, one hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 197 394 591 985 1182 1970 2053 2955 4106 5910 6159 10265 12318 20530 30795 61590 404441 808882 1213323 2022205 2426646 4044410 6066615 12133230