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12237825 = 352163171
BaseRepresentation
bin101110101011…
…110000000001
3212000202010210
4232223300001
511113102300
61114144333
7206006535
oct56536001
925022123
1012237825
1169a9506
1241220a9
1326c6322
1418a7bc5
15111b050
hexbabc01

12237825 has 12 divisors (see below), whose sum is σ = 20233328. Its totient is φ = 6526800.

The previous prime is 12237821. The next prime is 12237829. The reversal of 12237825 is 52873221.

It is an interprime number because it is at equal distance from previous prime (12237821) and next prime (12237829).

It is not a de Polignac number, because 12237825 - 22 = 12237821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12237792 and 12237801.

It is not an unprimeable number, because it can be changed into a prime (12237821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81511 + ... + 81660.

Almost surely, 212237825 is an apocalyptic number.

12237825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12237825 is a deficient number, since it is larger than the sum of its proper divisors (7995503).

12237825 is a wasteful number, since it uses less digits than its factorization.

12237825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163184 (or 163179 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 12237825 is about 3498.2602819116. The cubic root of 12237825 is about 230.4454191359.

The spelling of 12237825 in words is "twelve million, two hundred thirty-seven thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 163171 489513 815855 2447565 4079275 12237825