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12724230 = 2351972153
BaseRepresentation
bin110000100010…
…100000000110
3212221110100210
4300202200012
511224133410
61132420250
7213103611
oct60424006
925843323
1012724230
1172009a2
124317686
13283683c
141993178
1511b5220
hexc22806

12724230 has 32 divisors (see below), whose sum is σ = 30707424. Its totient is φ = 3374336.

The previous prime is 12724223. The next prime is 12724249. The reversal of 12724230 is 3242721.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12724197 and 12724206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4834 + ... + 6986.

It is an arithmetic number, because the mean of its divisors is an integer number (959607).

Almost surely, 212724230 is an apocalyptic number.

12724230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12724230 is an abundant number, since it is smaller than the sum of its proper divisors (17983194).

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

12724230 is a wasteful number, since it uses less digits than its factorization.

12724230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12724230 is about 3567.1038672851. The cubic root of 12724230 is about 233.4589369105.

Adding to 12724230 its reverse (3242721), we get a palindrome (15966951).

The spelling of 12724230 in words is "twelve million, seven hundred twenty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 197 394 591 985 1182 1970 2153 2955 4306 5910 6459 10765 12918 21530 32295 64590 424141 848282 1272423 2120705 2544846 4241410 6362115 12724230