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12305381739 = 37585970559
BaseRepresentation
bin10110111010111010…
…10011100101101011
31011202120202011100020
423131131103211223
5200200134203424
65353015011523
7613640006340
oct133535234553
934676664306
1012305381739
115245081482
122475069ba3
1312114c8091
1484a3d27c7
154c0494079
hex2dd75396b

12305381739 has 8 divisors (see below), whose sum is σ = 18751057920. Its totient is φ = 7031646696.

The previous prime is 12305381659. The next prime is 12305381741. The reversal of 12305381739 is 93718350321.

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

It is not a de Polignac number, because 12305381739 - 223 = 12296993131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12305381739.

It is not an unprimeable number, because it can be changed into a prime (12305331739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292985259 + ... + 292985300.

It is an arithmetic number, because the mean of its divisors is an integer number (2343882240).

Almost surely, 212305381739 is an apocalyptic number.

12305381739 is a deficient number, since it is larger than the sum of its proper divisors (6445676181).

12305381739 is an equidigital number, since it uses as much as digits as its factorization.

12305381739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585970569.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 12305381739 in words is "twelve billion, three hundred five million, three hundred eighty-one thousand, seven hundred thirty-nine".

Divisors: 1 3 7 21 585970559 1757911677 4101793913 12305381739