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12714702578 = 271211232
BaseRepresentation
bin10111101011101101…
…01111011011110010
31012211002221210222022
423311312233123302
5202014430440303
65501400111442
7630040121504
oct136566573362
935732853868
1012714702578
115435133266
12256a165582
131278251066
14888901d74
154e6399438
hex2f5daf6f2

12714702578 has 18 divisors (see below), whose sum is σ = 19361698767. Its totient is φ = 6262229820.

The previous prime is 12714702571. The next prime is 12714702617. The reversal of 12714702578 is 87520741721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6357351289 + 6357351289 = 79733^2 + 79733^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=79733.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12714702571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11321525 + ... + 11322647.

Almost surely, 212714702578 is an apocalyptic number.

12714702578 is a deficient number, since it is larger than the sum of its proper divisors (6646996189).

12714702578 is an frugal number, since it uses more digits than its factorization.

12714702578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 44.

The spelling of 12714702578 in words is "twelve billion, seven hundred fourteen million, seven hundred two thousand, five hundred seventy-eight".

Divisors: 1 2 71 142 1123 2246 5041 10082 79733 159466 1261129 2522258 5661043 11322086 89540159 179080318 6357351289 12714702578