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12431030 = 254726449
BaseRepresentation
bin101111011010…
…111010110110
3212101120011112
4233122322312
511140243110
61122235022
7210443033
oct57327266
925346145
1012431030
117020687
1241b5a72
132763251
14191838a
151158405
hexbdaeb6

12431030 has 16 divisors (see below), whose sum is σ = 22852800. Its totient is φ = 4866432.

The previous prime is 12430963. The next prime is 12431033. The reversal of 12431030 is 3013421.

It is a junction number, because it is equal to n+sod(n) for n = 12430996 and 12431014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431033) 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, 12755 + ... + 13694.

It is an arithmetic number, because the mean of its divisors is an integer number (1428300).

Almost surely, 212431030 is an apocalyptic number.

12431030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12431030 is a deficient number, since it is larger than the sum of its proper divisors (10421770).

12431030 is a wasteful number, since it uses less digits than its factorization.

12431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26503.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12431030 is about 3525.7665833121. The cubic root of 12431030 is about 231.6518137111.

Adding to 12431030 its reverse (3013421), we get a palindrome (15444451).

The spelling of 12431030 in words is "twelve million, four hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 47 94 235 470 26449 52898 132245 264490 1243103 2486206 6215515 12431030