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12132230 = 2511532081
BaseRepresentation
bin101110010001…
…111110000110
3211211101021212
4232101332012
511101212410
61112011422
7205056635
oct56217606
924741255
1012132230
116937140
124090b72
13268a246
14187b51c
1510e9b05
hexb91f86

12132230 has 32 divisors (see below), whose sum is σ = 24284448. Its totient is φ = 4326400.

The previous prime is 12132223. The next prime is 12132259. The reversal of 12132230 is 3223121.

It is a happy number.

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, 4790 + ... + 6870.

It is an arithmetic number, because the mean of its divisors is an integer number (758889).

Almost surely, 212132230 is an apocalyptic number.

12132230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12132230 is an abundant number, since it is smaller than the sum of its proper divisors (12152218).

12132230 is a wasteful number, since it uses less digits than its factorization.

12132230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12132230 is about 3483.1350820776. The cubic root of 12132230 is about 229.7806983379.

Adding to 12132230 its reverse (3223121), we get a palindrome (15355351).

It can be divided in two parts, 1213 and 2230, that added together give a palindrome (3443).

The spelling of 12132230 in words is "twelve million, one hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 53 55 106 110 265 530 583 1166 2081 2915 4162 5830 10405 20810 22891 45782 110293 114455 220586 228910 551465 1102930 1213223 2426446 6066115 12132230