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12102288 = 2431122921
BaseRepresentation
bin101110001010…
…101010010000
3211202212012220
4232022222100
511044233123
61111221040
7204603432
oct56125220
924685186
1012102288
1169166a0
124077780
132679723
141870652
1510e0ce3
hexb8aa90

12102288 has 40 divisors (see below), whose sum is σ = 34107936. Its totient is φ = 3667200.

The previous prime is 12102287. The next prime is 12102289. The reversal of 12102288 is 88220121.

It is an interprime number because it is at equal distance from previous prime (12102287) and next prime (12102289).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12102287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10933 + ... + 11988.

Almost surely, 212102288 is an apocalyptic number.

It is an amenable number.

12102288 is an abundant number, since it is smaller than the sum of its proper divisors (22005648).

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

12102288 is a wasteful number, since it uses less digits than its factorization.

12102288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22943 (or 22937 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 12102288 is about 3478.8342875164. The cubic root of 12102288 is about 229.5915118651.

The spelling of 12102288 in words is "twelve million, one hundred two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 22921 45842 68763 91684 137526 183368 252131 275052 366736 504262 550104 756393 1008524 1100208 1512786 2017048 3025572 4034096 6051144 12102288