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12108030 = 2351136691
BaseRepresentation
bin101110001100…
…000011111110
3211210011002120
4232030003332
511044424110
61111303410
7204626244
oct56140376
924704076
1012108030
11691aa40
12407ab66
13267c21c
141872794
1510e2870
hexb8c0fe

12108030 has 32 divisors (see below), whose sum is σ = 31701888. Its totient is φ = 2935200.

The previous prime is 12108017. The next prime is 12108037. The reversal of 12108030 is 3080121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108037) by changing a digit.

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, 18016 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (990684).

Almost surely, 212108030 is an apocalyptic number.

12108030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12108030 is an abundant number, since it is smaller than the sum of its proper divisors (19593858).

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

12108030 is a wasteful number, since it uses less digits than its factorization.

12108030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36712.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 12108030 is about 3479.6594660972. The cubic root of 12108030 is about 229.6278164609.

Adding to 12108030 its reverse (3080121), we get a palindrome (15188151).

The spelling of 12108030 in words is "twelve million, one hundred eight thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 36691 73382 110073 183455 220146 366910 403601 550365 807202 1100730 1210803 2018005 2421606 4036010 6054015 12108030