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12525145 = 510392411
BaseRepresentation
bin101111110001…
…111001011001
3212120100021021
4233301321121
511201301040
61124242441
7211314313
oct57617131
925510237
1012525145
117085366
124240421
132797039
1419407b3
15117624a
hexbf1e59

12525145 has 8 divisors (see below), whose sum is σ = 15050880. Its totient is φ = 10006320.

The previous prime is 12525137. The next prime is 12525157. The reversal of 12525145 is 54152521.

12525145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12525145 - 23 = 12525137 is a prime.

It is a super-4 number, since 4×125251454 (a number of 29 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3990 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (1881360).

Almost surely, 212525145 is an apocalyptic number.

It is an amenable number.

12525145 is a deficient number, since it is larger than the sum of its proper divisors (2525735).

12525145 is a wasteful number, since it uses less digits than its factorization.

12525145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455.

The product of its digits is 2000, while the sum is 25.

The square root of 12525145 is about 3539.0881593993. The cubic root of 12525145 is about 232.2349544523.

Adding to 12525145 its reverse (54152521), we get a palindrome (66677666).

The spelling of 12525145 in words is "twelve million, five hundred twenty-five thousand, one hundred forty-five".

Divisors: 1 5 1039 2411 5195 12055 2505029 12525145