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12028026 = 2319105509
BaseRepresentation
bin101101111000…
…100001111010
3211122002100110
4231320201322
511034344101
61105445150
7204144063
oct55704172
924562313
1012028026
11687591a
1240407b6
13265199a
14185156a
1510c8cd6
hexb7887a

12028026 has 16 divisors (see below), whose sum is σ = 25322400. Its totient is φ = 3798288.

The previous prime is 12028021. The next prime is 12028033. The reversal of 12028026 is 62082021.

It is a junction number, because it is equal to n+sod(n) for n = 12027993 and 12028011.

It is not an unprimeable number, because it can be changed into a prime (12028021) 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 7 ways as a sum of consecutive naturals, for example, 52641 + ... + 52868.

It is an arithmetic number, because the mean of its divisors is an integer number (1582650).

Almost surely, 212028026 is an apocalyptic number.

12028026 is an abundant number, since it is smaller than the sum of its proper divisors (13294374).

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

12028026 is a wasteful number, since it uses less digits than its factorization.

12028026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105533.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12028026 is about 3468.1444606590. The cubic root of 12028026 is about 229.1209419444.

The spelling of 12028026 in words is "twelve million, twenty-eight thousand, twenty-six".

Divisors: 1 2 3 6 19 38 57 114 105509 211018 316527 633054 2004671 4009342 6014013 12028026