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12513301 = 43291007
BaseRepresentation
bin101111101111…
…000000010101
3212112202000121
4233233000111
511200411201
61124111541
7211234633
oct57570025
925482017
1012513301
117077479
1242355b1
132791828
14193a353
1511729a1
hexbef015

12513301 has 4 divisors (see below), whose sum is σ = 12804352. Its totient is φ = 12222252.

The previous prime is 12513299. The next prime is 12513307. The reversal of 12513301 is 10331521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12513301 - 21 = 12513299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513307) 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 3 ways as a sum of consecutive naturals, for example, 145461 + ... + 145546.

It is an arithmetic number, because the mean of its divisors is an integer number (3201088).

Almost surely, 212513301 is an apocalyptic number.

It is an amenable number.

12513301 is a deficient number, since it is larger than the sum of its proper divisors (291051).

12513301 is an equidigital number, since it uses as much as digits as its factorization.

12513301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291050.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 12513301 is about 3537.4144512624. The cubic root of 12513301 is about 232.1617295314.

Adding to 12513301 its reverse (10331521), we get a palindrome (22844822).

The spelling of 12513301 in words is "twelve million, five hundred thirteen thousand, three hundred one".

Divisors: 1 43 291007 12513301