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12725853909 = 37159745793
BaseRepresentation
bin10111101101000010…
…10001111011010101
31012211212221100201120
423312201101323111
5202030304311114
65502435114153
7630233654616
oct136641217325
935755840646
1012725853909
11544045a43a
122571a42959
13127a656992
1488a1a5c0d
154e734d5a9
hex2f6851ed5

12725853909 has 8 divisors (see below), whose sum is σ = 17206788672. Its totient is φ = 8364410880.

The previous prime is 12725853887. The next prime is 12725853911. The reversal of 12725853909 is 90935852721.

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

It is not a de Polignac number, because 12725853909 - 28 = 12725853653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725853409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29872684 + ... + 29873109.

It is an arithmetic number, because the mean of its divisors is an integer number (2150848584).

Almost surely, 212725853909 is an apocalyptic number.

It is an amenable number.

12725853909 is a deficient number, since it is larger than the sum of its proper divisors (4480934763).

12725853909 is an equidigital number, since it uses as much as digits as its factorization.

12725853909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59745867.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 12725853909 in words is "twelve billion, seven hundred twenty-five million, eight hundred fifty-three thousand, nine hundred nine".

Divisors: 1 3 71 213 59745793 179237379 4241951303 12725853909