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12731083141 = 76129815183
BaseRepresentation
bin10111101101101010…
…01110100110000101
31012212020210000212211
423312311032212011
5202033124130031
65503143143421
7630326264320
oct136665164605
935766700784
1012731083141
115443401217
122573744b71
13127b767bba
1488ab677b7
154e7a32bb1
hex2f6d4e985

12731083141 has 8 divisors (see below), whose sum is σ = 14788331264. Its totient is φ = 10733465520.

The previous prime is 12731083121. The next prime is 12731083151. The reversal of 12731083141 is 14138013721.

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

It is a cyclic number.

It is not a de Polignac number, because 12731083141 - 25 = 12731083109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731083121) 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, 14907165 + ... + 14908018.

It is an arithmetic number, because the mean of its divisors is an integer number (1848541408).

Almost surely, 212731083141 is an apocalyptic number.

It is an amenable number.

12731083141 is a deficient number, since it is larger than the sum of its proper divisors (2057248123).

12731083141 is an equidigital number, since it uses as much as digits as its factorization.

12731083141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29815251.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 12731083141 its reverse (14138013721), we get a palindrome (26869096862).

The spelling of 12731083141 in words is "twelve billion, seven hundred thirty-one million, eighty-three thousand, one hundred forty-one".

Divisors: 1 7 61 427 29815183 208706281 1818726163 12731083141