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12103663 = 1113531597
BaseRepresentation
bin101110001010…
…111111101111
3211202221002211
4232022333233
511044304123
61111231251
7204610435
oct56127757
924687084
1012103663
116917730
124078527
13267a240
141870d55
1510e140d
hexb8afef

12103663 has 16 divisors (see below), whose sum is σ = 14497056. Its totient is φ = 9959040.

The previous prime is 12103657. The next prime is 12103691. The reversal of 12103663 is 36630121.

It is not a de Polignac number, because 12103663 - 25 = 12103631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103603) 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 15 ways as a sum of consecutive naturals, for example, 6781 + ... + 8377.

It is an arithmetic number, because the mean of its divisors is an integer number (906066).

Almost surely, 212103663 is an apocalyptic number.

12103663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12103663 is a deficient number, since it is larger than the sum of its proper divisors (2393393).

12103663 is a wasteful number, since it uses less digits than its factorization.

12103663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12103663 is about 3479.0319055737. The cubic root of 12103663 is about 229.6002065399.

Adding to 12103663 its reverse (36630121), we get a palindrome (48733784).

The spelling of 12103663 in words is "twelve million, one hundred three thousand, six hundred sixty-three".

Divisors: 1 11 13 53 143 583 689 1597 7579 17567 20761 84641 228371 931051 1100333 12103663