Base | Representation |
---|---|
bin | 111111111111111000… |
… | …000111110001010111 |
3 | 20120101000221012002200 |
4 | 333333320013301113 |
5 | 2111213124131130 |
6 | 51322432335543 |
7 | 4651611234222 |
oct | 777770076127 |
9 | 216330835080 |
10 | 68717411415 |
11 | 27163207304 |
12 | 113993a45b3 |
13 | 66317c77b3 |
14 | 347c5485b9 |
15 | 1bc2c0e760 |
hex | fffe07c57 |
68717411415 has 24 divisors (see below), whose sum is σ = 120787793568. Its totient is φ = 36133097280.
The previous prime is 68717411311. The next prime is 68717411447. The reversal of 68717411415 is 51411471786.
68717411415 is a `hidden beast` number, since 68 + 7 + 174 + 1 + 1 + 415 = 666.
It is not a de Polignac number, because 68717411415 - 28 = 68717411159 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10750704 + ... + 10757093.
It is an arithmetic number, because the mean of its divisors is an integer number (5032824732).
Almost surely, 268717411415 is an apocalyptic number.
68717411415 is a deficient number, since it is larger than the sum of its proper divisors (52070382153).
68717411415 is a wasteful number, since it uses less digits than its factorization.
68717411415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21507879 (or 21507876 counting only the distinct ones).
The product of its digits is 188160, while the sum is 45.
The spelling of 68717411415 in words is "sixty-eight billion, seven hundred seventeen million, four hundred eleven thousand, four hundred fifteen".
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