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12575905349 = 75333897319
BaseRepresentation
bin10111011011001010…
…10001011001000101
31012110102210011222012
423231211101121011
5201223412432344
65435521144005
7623433301040
oct135545213105
935412704865
1012575905349
115373852907
12252b78b005
131255575317
148742d1c57
154d90ce29e
hex2ed951645

12575905349 has 8 divisors (see below), whose sum is σ = 14643642240. Its totient is φ = 10575963216.

The previous prime is 12575905333. The next prime is 12575905357. The reversal of 12575905349 is 94350957521.

12575905349 is digitally balanced in base 2, 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 12575905349 - 24 = 12575905333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12575905297 and 12575905306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12575905369) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16948289 + ... + 16949030.

It is an arithmetic number, because the mean of its divisors is an integer number (1830455280).

Almost surely, 212575905349 is an apocalyptic number.

It is an amenable number.

12575905349 is a deficient number, since it is larger than the sum of its proper divisors (2067736891).

12575905349 is an equidigital number, since it uses as much as digits as its factorization.

12575905349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33897379.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 12575905349 in words is "twelve billion, five hundred seventy-five million, nine hundred five thousand, three hundred forty-nine".

Divisors: 1 7 53 371 33897319 237281233 1796557907 12575905349