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12427130 = 252371761
BaseRepresentation
bin101111011001…
…111101111010
3212101100211002
4233121331322
511140132010
61122205002
7210425462
oct57317572
925340732
1012427130
117018761
1241b3762
132761541
141916ba2
1511571a5
hexbd9f7a

12427130 has 32 divisors (see below), whose sum is σ = 23701248. Its totient is φ = 4681600.

The previous prime is 12427117. The next prime is 12427139. The reversal of 12427130 is 3172421.

It is not an unprimeable number, because it can be changed into a prime (12427139) 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, 15950 + ... + 16710.

It is an arithmetic number, because the mean of its divisors is an integer number (740664).

Almost surely, 212427130 is an apocalyptic number.

12427130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12427130 is a deficient number, since it is larger than the sum of its proper divisors (11274118).

12427130 is a wasteful number, since it uses less digits than its factorization.

12427130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12427130 is about 3525.2134687136. The cubic root of 12427130 is about 231.6275857223.

Adding to 12427130 its reverse (3172421), we get a palindrome (15599551).

The spelling of 12427130 in words is "twelve million, four hundred twenty-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 23 46 71 115 142 230 355 710 761 1522 1633 3266 3805 7610 8165 16330 17503 35006 54031 87515 108062 175030 270155 540310 1242713 2485426 6213565 12427130