Base | Representation |
---|---|
bin | 11010101000000110… |
… | …110011100010010011 |
3 | 2201210111102121111112 |
4 | 122220012303202103 |
5 | 432023040110034 |
6 | 21044550203535 |
7 | 2031330231131 |
oct | 325006634223 |
9 | 81714377445 |
10 | 28590160019 |
11 | 11141444423 |
12 | 565a9535ab |
13 | 290827c865 |
14 | 15530d4751 |
15 | b24e8d7ce |
hex | 6a81b3893 |
28590160019 has 4 divisors (see below), whose sum is σ = 29198461344. Its totient is φ = 27981858696.
The previous prime is 28590159979. The next prime is 28590160033. The reversal of 28590160019 is 91006109582.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91006109582 = 2 ⋅45503054791.
It is a cyclic number.
It is not a de Polignac number, because 28590160019 - 220 = 28589111443 is a prime.
It is a super-2 number, since 2×285901600192 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28590160219) 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, 304150592 + ... + 304150685.
It is an arithmetic number, because the mean of its divisors is an integer number (7299615336).
Almost surely, 228590160019 is an apocalyptic number.
28590160019 is a deficient number, since it is larger than the sum of its proper divisors (608301325).
28590160019 is an equidigital number, since it uses as much as digits as its factorization.
28590160019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 608301324.
The product of its (nonzero) digits is 38880, while the sum is 41.
The spelling of 28590160019 in words is "twenty-eight billion, five hundred ninety million, one hundred sixty thousand, nineteen".
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