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12050205 = 35803347
BaseRepresentation
bin101101111101…
…111100011101
3211200012202220
4231331330131
511041101310
61110135553
7204265536
oct55757435
924605686
1012050205
116890552
1240515b9
13265bacb
14185968d
1510d0670
hexb7df1d

12050205 has 8 divisors (see below), whose sum is σ = 19280352. Its totient is φ = 6426768.

The previous prime is 12050201. The next prime is 12050249. The reversal of 12050205 is 50205021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12050205 - 22 = 12050201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 803347 = 12050205 / (1 + 2 + 0 + 5 + 0 + 2 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12050201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401659 + ... + 401688.

It is an arithmetic number, because the mean of its divisors is an integer number (2410044).

Almost surely, 212050205 is an apocalyptic number.

12050205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12050205 is a deficient number, since it is larger than the sum of its proper divisors (7230147).

12050205 is an equidigital number, since it uses as much as digits as its factorization.

12050205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803355.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 12050205 is about 3471.3405191655. The cubic root of 12050205 is about 229.2616841611.

Adding to 12050205 its reverse (50205021), we get a palindrome (62255226).

The spelling of 12050205 in words is "twelve million, fifty thousand, two hundred five".

Divisors: 1 3 5 15 803347 2410041 4016735 12050205