Base | Representation |
---|---|
bin | 11010000111110100… |
… | …001110011011001011 |
3 | 2200101202001021212002 |
4 | 122013310032123023 |
5 | 424420343343012 |
6 | 20515114541215 |
7 | 2012031423614 |
oct | 320764163313 |
9 | 80352037762 |
10 | 28048418507 |
11 | 10993667a6a |
12 | 552943780b |
13 | 284cc71355 |
14 | 1501194c0b |
15 | ae262c7c2 |
hex | 687d0e6cb |
28048418507 has 8 divisors (see below), whose sum is σ = 31261395600. Its totient is φ = 25009115904.
The previous prime is 28048418491. The next prime is 28048418521. The reversal of 28048418507 is 70581484082.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28048418507 - 24 = 28048418491 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28048418537) 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 7 ways as a sum of consecutive naturals, for example, 43418282 + ... + 43418927.
It is an arithmetic number, because the mean of its divisors is an integer number (3907674450).
Almost surely, 228048418507 is an apocalyptic number.
28048418507 is a deficient number, since it is larger than the sum of its proper divisors (3212977093).
28048418507 is a wasteful number, since it uses less digits than its factorization.
28048418507 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 86837245.
The product of its (nonzero) digits is 573440, while the sum is 47.
The spelling of 28048418507 in words is "twenty-eight billion, forty-eight million, four hundred eighteen thousand, five hundred seven".
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