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12740302137 = 39750118737
BaseRepresentation
bin10111101110110000…
…11001010100111001
31012212220010101222010
423313120121110321
5202043004132022
65504112520133
7630500532003
oct136730312471
935786111863
1012740302137
115448628622
122576850049
131280645124
1488c087373
154e875450c
hex2f7619539

12740302137 has 16 divisors (see below), whose sum is σ = 17167583552. Its totient is φ = 8403333120.

The previous prime is 12740302111. The next prime is 12740302139. The reversal of 12740302137 is 73120304721.

It is not a de Polignac number, because 12740302137 - 28 = 12740301881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12740302139) 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 15 ways as a sum of consecutive naturals, for example, 1453833 + ... + 1462569.

It is an arithmetic number, because the mean of its divisors is an integer number (1072973972).

Almost surely, 212740302137 is an apocalyptic number.

It is an amenable number.

12740302137 is a deficient number, since it is larger than the sum of its proper divisors (4427281415).

12740302137 is an equidigital number, since it uses as much as digits as its factorization.

12740302137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13848.

The product of its (nonzero) digits is 7056, while the sum is 30.

Adding to 12740302137 its reverse (73120304721), we get a palindrome (85860606858).

The spelling of 12740302137 in words is "twelve billion, seven hundred forty million, three hundred two thousand, one hundred thirty-seven".

Divisors: 1 3 97 291 5011 8737 15033 26211 486067 847489 1458201 2542467 43781107 131343321 4246767379 12740302137