Base | Representation |
---|---|
bin | 11000001000010010… |
… | …01011100010001011 |
3 | 1020102211000120202000 |
4 | 30010021023202023 |
5 | 203012312323131 |
6 | 5541242042043 |
7 | 636010505304 |
oct | 140411134213 |
9 | 36384016660 |
10 | 12954417291 |
11 | 55484814a2 |
12 | 26164a9323 |
13 | 12b5b0209a |
14 | 8ac6a17ab |
15 | 50c44ace6 |
hex | 30424b88b |
12954417291 has 8 divisors (see below), whose sum is σ = 19191729360. Its totient is φ = 8636278176.
The previous prime is 12954417241. The next prime is 12954417313. The reversal of 12954417291 is 19271445921.
12954417291 is a `hidden beast` number, since 1 + 2 + 9 + 544 + 17 + 2 + 91 = 666.
It is not a de Polignac number, because 12954417291 - 29 = 12954416779 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12954417241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239896590 + ... + 239896643.
It is an arithmetic number, because the mean of its divisors is an integer number (2398966170).
Almost surely, 212954417291 is an apocalyptic number.
12954417291 is a deficient number, since it is larger than the sum of its proper divisors (6237312069).
12954417291 is an equidigital number, since it uses as much as digits as its factorization.
12954417291 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 479793242 (or 479793236 counting only the distinct ones).
The product of its digits is 181440, while the sum is 45.
The spelling of 12954417291 in words is "twelve billion, nine hundred fifty-four million, four hundred seventeen thousand, two hundred ninety-one".
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