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12530045 = 511317349
BaseRepresentation
bin101111110011…
…000101111101
3212120120222202
4233303011331
511201430140
61124321245
7211334513
oct57630575
925516882
1012530045
117089010
124243225
132799338
1419424b3
151177915
hexbf317d

12530045 has 16 divisors (see below), whose sum is σ = 16934400. Its totient is φ = 8817600.

The previous prime is 12530039. The next prime is 12530057. The reversal of 12530045 is 54003521.

It is not a de Polignac number, because 12530045 - 24 = 12530029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12529999 and 12530026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970 + ... + 5379.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 212530045 is an apocalyptic number.

It is an amenable number.

12530045 is a deficient number, since it is larger than the sum of its proper divisors (4404355).

12530045 is a wasteful number, since it uses less digits than its factorization.

12530045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7396.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 12530045 is about 3539.7803604179. The cubic root of 12530045 is about 232.2652349512.

Adding to 12530045 its reverse (54003521), we get a palindrome (66533566).

The spelling of 12530045 in words is "twelve million, five hundred thirty thousand, forty-five".

Divisors: 1 5 11 31 55 155 341 1705 7349 36745 80839 227819 404195 1139095 2506009 12530045