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12018190 = 252352253
BaseRepresentation
bin101101110110…
…001000001110
3211121120212011
4231312020032
511034040230
61105331434
7204103312
oct55661016
924546764
1012018190
116869498
124036b7a
13264a372
14184bb42
1510c5e2a
hexb7620e

12018190 has 16 divisors (see below), whose sum is σ = 22573728. Its totient is φ = 4598176.

The previous prime is 12018187. The next prime is 12018211. The reversal of 12018190 is 9181021.

12018190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×120181902 = 288873781752200, which contains 22 as substring.

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, 25897 + ... + 26356.

It is an arithmetic number, because the mean of its divisors is an integer number (1410858).

Almost surely, 212018190 is an apocalyptic number.

12018190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12018190 is a deficient number, since it is larger than the sum of its proper divisors (10555538).

12018190 is a wasteful number, since it uses less digits than its factorization.

12018190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52283.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 12018190 is about 3466.7261212850. The cubic root of 12018190 is about 229.0584698432.

The spelling of 12018190 in words is "twelve million, eighteen thousand, one hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 52253 104506 261265 522530 1201819 2403638 6009095 12018190