Base | Representation |
---|---|
bin | 111110110010101011… |
… | …001010100011011001 |
3 | 20110000202201001221200 |
4 | 332302223022203121 |
5 | 2101040033404210 |
6 | 50550123024413 |
7 | 4604532661161 |
oct | 766253124331 |
9 | 213022631850 |
10 | 67422169305 |
11 | 26659069787 |
12 | 1109766b109 |
13 | 648636734a |
14 | 33985055a1 |
15 | 1b4915e0c0 |
hex | fb2aca8d9 |
67422169305 has 12 divisors (see below), whose sum is σ = 116865093540. Its totient is φ = 35958490272.
The previous prime is 67422169291. The next prime is 67422169307. The reversal of 67422169305 is 50396122476.
67422169305 is a `hidden beast` number, since 67 + 4 + 221 + 69 + 305 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 17967525849 + 49454643456 = 134043^2 + 222384^2 .
It is not a de Polignac number, because 67422169305 - 24 = 67422169289 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1498270429 = 67422169305 / (6 + 7 + 4 + 2 + 2 + 1 + 6 + 9 + 3 + 0 + 5).
It is not an unprimeable number, because it can be changed into a prime (67422169307) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749135170 + ... + 749135259.
It is an arithmetic number, because the mean of its divisors is an integer number (9738757795).
Almost surely, 267422169305 is an apocalyptic number.
It is an amenable number.
67422169305 is a deficient number, since it is larger than the sum of its proper divisors (49442924235).
67422169305 is a wasteful number, since it uses less digits than its factorization.
67422169305 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1498270440 (or 1498270437 counting only the distinct ones).
The product of its (nonzero) digits is 544320, while the sum is 45.
The spelling of 67422169305 in words is "sixty-seven billion, four hundred twenty-two million, one hundred sixty-nine thousand, three hundred five".
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