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12122230 = 254013023
BaseRepresentation
bin101110001111…
…100001110110
3211210212120111
4232033201312
511100402410
61111453234
7205015531
oct56174166
924725514
1012122230
11692a67a
12408721a
132685823
141877a18
1510e6b8a
hexb8f876

12122230 has 16 divisors (see below), whose sum is σ = 21881664. Its totient is φ = 4835200.

The previous prime is 12122221. The next prime is 12122237. The reversal of 12122230 is 3222121.

It is a self number, because there is not a number n which added to its sum of digits gives 12122230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499 + ... + 5521.

It is an arithmetic number, because the mean of its divisors is an integer number (1367604).

Almost surely, 212122230 is an apocalyptic number.

12122230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122230 is a deficient number, since it is larger than the sum of its proper divisors (9759434).

12122230 is a wasteful number, since it uses less digits than its factorization.

12122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12122230 is about 3481.6992977568. The cubic root of 12122230 is about 229.7175486780.

Adding to 12122230 its reverse (3222121), we get a palindrome (15344351).

The spelling of 12122230 in words is "twelve million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 401 802 2005 3023 4010 6046 15115 30230 1212223 2424446 6061115 12122230