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12025055 = 573111083
BaseRepresentation
bin101101110111…
…110011011111
3211121221021102
4231313303133
511034300210
61105423315
7204132320
oct55676337
924557242
1012025055
116873669
12403ab3b
132650523
141850447
1510c7ea5
hexb77cdf

12025055 has 16 divisors (see below), whose sum is σ = 17025024. Its totient is φ = 7979040.

The previous prime is 12025049. The next prime is 12025061. The reversal of 12025055 is 55052021.

It is an interprime number because it is at equal distance from previous prime (12025049) and next prime (12025061).

It is a de Polignac number, because none of the positive numbers 2k-12025055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4457 + ... + 6626.

It is an arithmetic number, because the mean of its divisors is an integer number (1064064).

Almost surely, 212025055 is an apocalyptic number.

12025055 is a deficient number, since it is larger than the sum of its proper divisors (4999969).

12025055 is a wasteful number, since it uses less digits than its factorization.

12025055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 12025055 is about 3467.7161071806. The cubic root of 12025055 is about 229.1020756074.

Adding to 12025055 its reverse (55052021), we get a palindrome (67077076).

The spelling of 12025055 in words is "twelve million, twenty-five thousand, fifty-five".

Divisors: 1 5 7 31 35 155 217 1085 11083 55415 77581 343573 387905 1717865 2405011 12025055