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12530274 = 232338963
BaseRepresentation
bin101111110011…
…001001100010
3212120121022020
4233303021202
511201432044
61124322310
7211335261
oct57631142
925517266
1012530274
1170891a9
124243396
132799483
1419425d8
151177a19
hexbf3262

12530274 has 16 divisors (see below), whose sum is σ = 25170912. Its totient is φ = 4158368.

The previous prime is 12530267. The next prime is 12530279. The reversal of 12530274 is 47203521.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12530279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3084 + ... + 5879.

It is an arithmetic number, because the mean of its divisors is an integer number (1573182).

Almost surely, 212530274 is an apocalyptic number.

12530274 is an abundant number, since it is smaller than the sum of its proper divisors (12640638).

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

12530274 is a wasteful number, since it uses less digits than its factorization.

12530274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 12530274 is about 3539.8127069098. The cubic root of 12530274 is about 232.2666499079.

Adding to 12530274 its reverse (47203521), we get a palindrome (59733795).

The spelling of 12530274 in words is "twelve million, five hundred thirty thousand, two hundred seventy-four".

Divisors: 1 2 3 6 233 466 699 1398 8963 17926 26889 53778 2088379 4176758 6265137 12530274