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12517148 = 227263863
BaseRepresentation
bin101111101111…
…111100011100
3212112221022002
4233233330130
511201022043
61124141432
7211252100
oct57577434
925487262
1012517148
11707a356
124237878
1327934c7
14193b900
151173bb8
hexbeff1c

12517148 has 18 divisors (see below), whose sum is σ = 25481736. Its totient is φ = 5364408.

The previous prime is 12517133. The next prime is 12517157. The reversal of 12517148 is 84171521.

It is a self number, because there is not a number n which added to its sum of digits gives 12517148.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 31736 + ... + 32127.

It is an arithmetic number, because the mean of its divisors is an integer number (1415652).

Almost surely, 212517148 is an apocalyptic number.

It is an amenable number.

12517148 is an abundant number, since it is smaller than the sum of its proper divisors (12964588).

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

12517148 is a wasteful number, since it uses less digits than its factorization.

12517148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63881 (or 63872 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 12517148 is about 3537.9581682095. The cubic root of 12517148 is about 232.1855184757.

Adding to 12517148 its reverse (84171521), we get a palindrome (96688669).

The spelling of 12517148 in words is "twelve million, five hundred seventeen thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 63863 127726 255452 447041 894082 1788164 3129287 6258574 12517148