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12330040 = 2351991549
BaseRepresentation
bin101111000010…
…010000111000
3212012102122011
4233002100320
511124030130
61120135304
7206542432
oct57022070
925172564
1012330040
116a61818
124167534
1327292a8
1418cd652
15113852a
hexbc2438

12330040 has 32 divisors (see below), whose sum is σ = 27900000. Its totient is φ = 4904064.

The previous prime is 12330037. The next prime is 12330061. The reversal of 12330040 is 4003321.

It is a self number, because there is not a number n which added to its sum of digits gives 12330040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7186 + ... + 8734.

It is an arithmetic number, because the mean of its divisors is an integer number (871875).

Almost surely, 212330040 is an apocalyptic number.

12330040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12330040 is an abundant number, since it is smaller than the sum of its proper divisors (15569960).

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

12330040 is a wasteful number, since it uses less digits than its factorization.

12330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 12330040 is about 3511.4156689290. The cubic root of 12330040 is about 231.0227921765.

Adding to 12330040 its reverse (4003321), we get a palindrome (16333361).

The spelling of 12330040 in words is "twelve million, three hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1549 1592 1990 3098 3980 6196 7745 7960 12392 15490 30980 61960 308251 616502 1233004 1541255 2466008 3082510 6165020 12330040