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115504147393 = 611092197809
BaseRepresentation
bin110101110010010010…
…1010110101111000001
3102001010200102122010221
41223210211112233001
53343023030204033
6125021210423041
711226205024255
oct1534445265701
9361120378127
10115504147393
1144a92097558
121a476131a81
13ab7993355b
14583a1da265
15301043612d
hex1ae4956bc1

115504147393 has 24 divisors (see below), whose sum is σ = 119233227960. Its totient is φ = 111858485760.

The previous prime is 115504147337. The next prime is 115504147439. The reversal of 115504147393 is 393741405511.

It can be written as a sum of positive squares in 12 ways, for example, as 235070224 + 115269077169 = 15332^2 + 339513^2 .

It is not a de Polignac number, because 115504147393 - 221 = 115502050241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115504148393) 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 23 ways as a sum of consecutive naturals, for example, 142773573 + ... + 142774381.

It is an arithmetic number, because the mean of its divisors is an integer number (4968051165).

Almost surely, 2115504147393 is an apocalyptic number.

It is an amenable number.

115504147393 is a deficient number, since it is larger than the sum of its proper divisors (3729080567).

115504147393 is an equidigital number, since it uses as much as digits as its factorization.

115504147393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 115504147393 in words is "one hundred fifteen billion, five hundred four million, one hundred forty-seven thousand, three hundred ninety-three".

Divisors: 1 61 109 197 809 6649 11881 12017 21473 49349 88181 159373 724741 1309853 2340557 5379041 9611729 9721753 17371657 142773977 586315469 1059671077 1893510613 115504147393