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12528929 = 73157737
BaseRepresentation
bin101111110010…
…110100100001
3212120112110102
4233302310201
511201411204
61124312145
7211331330
oct57626441
925515412
1012528929
117088196
124242655
13279898a
141941d17
15117741e
hexbf2d21

12528929 has 8 divisors (see below), whose sum is σ = 14780928. Its totient is φ = 10392480.

The previous prime is 12528913. The next prime is 12528937. The reversal of 12528929 is 92982521.

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

It is not a de Polignac number, because 12528929 - 24 = 12528913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12528892 and 12528901.

It is not an unprimeable number, because it can be changed into a prime (12528959) 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, 28652 + ... + 29085.

It is an arithmetic number, because the mean of its divisors is an integer number (1847616).

Almost surely, 212528929 is an apocalyptic number.

It is an amenable number.

12528929 is a deficient number, since it is larger than the sum of its proper divisors (2251999).

12528929 is an equidigital number, since it uses as much as digits as its factorization.

12528929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57775.

The product of its digits is 25920, while the sum is 38.

The square root of 12528929 is about 3539.6227200084. The cubic root of 12528929 is about 232.2583391074.

The spelling of 12528929 in words is "twelve million, five hundred twenty-eight thousand, nine hundred twenty-nine".

Divisors: 1 7 31 217 57737 404159 1789847 12528929