Base | Representation |
---|---|
bin | 11010011001011001… |
… | …100011100001011111 |
3 | 2201011022010202121111 |
4 | 122121121203201133 |
5 | 431021403320202 |
6 | 21004253442451 |
7 | 2022243032410 |
oct | 323131434137 |
9 | 81138122544 |
10 | 28343416927 |
11 | 11025135711 |
12 | 55b01a0427 |
13 | 289910a727 |
14 | 152c425807 |
15 | b0d49e6d7 |
hex | 69966385f |
28343416927 has 4 divisors (see below), whose sum is σ = 32392476496. Its totient is φ = 24294357360.
The previous prime is 28343416909. The next prime is 28343416943. The reversal of 28343416927 is 72961434382.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72961434382 = 2 ⋅36480717191.
It is not a de Polignac number, because 28343416927 - 27 = 28343416799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28343411927) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024529774 + ... + 2024529787.
It is an arithmetic number, because the mean of its divisors is an integer number (8098119124).
Almost surely, 228343416927 is an apocalyptic number.
28343416927 is a deficient number, since it is larger than the sum of its proper divisors (4049059569).
28343416927 is an equidigital number, since it uses as much as digits as its factorization.
28343416927 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4049059568.
The product of its digits is 1741824, while the sum is 49.
The spelling of 28343416927 in words is "twenty-eight billion, three hundred forty-three million, four hundred sixteen thousand, nine hundred twenty-seven".
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