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12255130 = 251772089
BaseRepresentation
bin101110101111…
…111110011010
3212001121212201
4232233332122
511114131010
61114400414
7206111146
oct56577632
925047781
1012255130
116a10508
12413010a
132701174
1418b0226
15112123a
hexbaff9a

12255130 has 16 divisors (see below), whose sum is σ = 23357160. Its totient is φ = 4613632.

The previous prime is 12255121. The next prime is 12255143. The reversal of 12255130 is 3155221.

It can be written as a sum of positive squares in 4 ways, for example, as 11881809 + 373321 = 3447^2 + 611^2 .

It is a super-2 number, since 2×122551302 = 300376422633800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12255098 and 12255107.

It is an unprimeable number.

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, 35875 + ... + 36214.

Almost surely, 212255130 is an apocalyptic number.

12255130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12255130 is a deficient number, since it is larger than the sum of its proper divisors (11102030).

12255130 is a wasteful number, since it uses less digits than its factorization.

12255130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72113.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12255130 is about 3500.7327804333. The cubic root of 12255130 is about 230.5539890756.

Subtracting from 12255130 its reverse (3155221), we obtain a palindrome (9099909).

The spelling of 12255130 in words is "twelve million, two hundred fifty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 72089 144178 360445 720890 1225513 2451026 6127565 12255130