Base | Representation |
---|---|
bin | 11111010101000100000101… |
… | …01000001110110101011111 |
3 | 100000221011002011120211220220 |
4 | 33222202002220032311133 |
5 | 33012222310023344242 |
6 | 402305115525212423 |
7 | 20340250223312400 |
oct | 1752420250166537 |
9 | 300834064524826 |
10 | 68893467012447 |
11 | 1aa51612096970 |
12 | 7888022861113 |
13 | 2c5981a5cab2c |
14 | 130266688b9a7 |
15 | 7e7125729bec |
hex | 3ea882a0ed5f |
68893467012447 has 48 divisors (see below), whose sum is σ = 119719801176192. Its totient is φ = 34821548758080.
The previous prime is 68893467012421. The next prime is 68893467012463. The reversal of 68893467012447 is 74421076439886.
It is not a de Polignac number, because 68893467012447 - 211 = 68893467010399 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68893467012497) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 575693293 + ... + 575812950.
It is an arithmetic number, because the mean of its divisors is an integer number (2494162524504).
Almost surely, 268893467012447 is an apocalyptic number.
68893467012447 is a deficient number, since it is larger than the sum of its proper divisors (50826334163745).
68893467012447 is a wasteful number, since it uses less digits than its factorization.
68893467012447 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1151506308 (or 1151506301 counting only the distinct ones).
The product of its (nonzero) digits is 390168576, while the sum is 69.
The spelling of 68893467012447 in words is "sixty-eight trillion, eight hundred ninety-three billion, four hundred sixty-seven million, twelve thousand, four hundred forty-seven".
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