Base | Representation |
---|---|
bin | 10101001101000111… |
… | …010101110000100111 |
3 | 2011202210011001000212 |
4 | 111031013111300213 |
5 | 333112230344442 |
6 | 14243150130035 |
7 | 1434140650142 |
oct | 251507256047 |
9 | 64683131025 |
10 | 22768606247 |
11 | 9724314962 |
12 | 44b51b091b |
13 | 21bb16269a |
14 | 115dc97059 |
15 | 8d3d53a82 |
hex | 54d1d5c27 |
22768606247 has 4 divisors (see below), whose sum is σ = 22770086856. Its totient is φ = 22767125640.
The previous prime is 22768606199. The next prime is 22768606261. The reversal of 22768606247 is 74260686722.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74260686722 = 2 ⋅37130343361.
It is a cyclic number.
It is not a de Polignac number, because 22768606247 - 214 = 22768589863 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 22768606195 and 22768606204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22768606747) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716993 + ... + 748074.
It is an arithmetic number, because the mean of its divisors is an integer number (5692521714).
Almost surely, 222768606247 is an apocalyptic number.
22768606247 is a deficient number, since it is larger than the sum of its proper divisors (1480609).
22768606247 is a wasteful number, since it uses less digits than its factorization.
22768606247 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1480608.
The product of its (nonzero) digits is 2709504, while the sum is 50.
The spelling of 22768606247 in words is "twenty-two billion, seven hundred sixty-eight million, six hundred six thousand, two hundred forty-seven".
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