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12102768 = 243284047
BaseRepresentation
bin101110001010…
…110001110000
3211202212212200
4232022301300
511044242033
61111223200
7204605016
oct56126160
924685780
1012102768
116916a97
124077b00
132679a02
1418708b6
1510e1013
hexb8ac70

12102768 has 30 divisors (see below), whose sum is σ = 33871344. Its totient is φ = 4034208.

The previous prime is 12102757. The next prime is 12102781. The reversal of 12102768 is 86720121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41880 + ... + 42167.

Almost surely, 212102768 is an apocalyptic number.

12102768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12102768 is an abundant number, since it is smaller than the sum of its proper divisors (21768576).

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

12102768 is a wasteful number, since it uses less digits than its factorization.

12102768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84061 (or 84052 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12102768 is about 3478.9032754591. The cubic root of 12102768 is about 229.5945471719.

Adding to 12102768 its reverse (86720121), we get a palindrome (98822889).

The spelling of 12102768 in words is "twelve million, one hundred two thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 84047 168094 252141 336188 504282 672376 756423 1008564 1344752 1512846 2017128 3025692 4034256 6051384 12102768