Base | Representation |
---|---|
bin | 111111110000111100… |
… | …001101011000101001 |
3 | 20112201120102001210220 |
4 | 333300330031120221 |
5 | 2110210001342440 |
6 | 51241521400253 |
7 | 4642446256644 |
oct | 776074153051 |
9 | 215646361726 |
10 | 68466824745 |
11 | 27044812890 |
12 | 11329499089 |
13 | 65c190b067 |
14 | 3457158a5b |
15 | 1baac118d0 |
hex | ff0f0d629 |
68466824745 has 32 divisors (see below), whose sum is σ = 119606246784. Its totient is φ = 33168115200.
The previous prime is 68466824669. The next prime is 68466824747. The reversal of 68466824745 is 54742866486.
It is a happy number.
It is not a de Polignac number, because 68466824745 - 27 = 68466824617 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68466824747) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22935 + ... + 370755.
It is an arithmetic number, because the mean of its divisors is an integer number (3737695212).
Almost surely, 268466824745 is an apocalyptic number.
It is an amenable number.
68466824745 is a deficient number, since it is larger than the sum of its proper divisors (51139422039).
68466824745 is a wasteful number, since it uses less digits than its factorization.
68466824745 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 349033.
The product of its digits is 61931520, while the sum is 60.
The spelling of 68466824745 in words is "sixty-eight billion, four hundred sixty-six million, eight hundred twenty-four thousand, seven hundred forty-five".
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