Base | Representation |
---|---|
bin | 110111001110… |
… | …1111111111001 |
3 | 2000111020212221 |
4 | 1232131333321 |
5 | 24403134323 |
6 | 2512404041 |
7 | 501100510 |
oct | 156357771 |
9 | 60436787 |
10 | 28958713 |
11 | 1538a123 |
12 | 9846621 |
13 | 5ccc044 |
14 | 3bbb677 |
15 | 282055d |
hex | 1b9dff9 |
28958713 has 8 divisors (see below), whose sum is σ = 33638720. Its totient is φ = 24414480.
The previous prime is 28958711. The next prime is 28958773. The reversal of 28958713 is 31785982.
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 28958713 - 21 = 28958711 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 28958713.
It is not an unprimeable number, because it can be changed into a prime (28958711) 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, 33483 + ... + 34336.
It is an arithmetic number, because the mean of its divisors is an integer number (4204840).
Almost surely, 228958713 is an apocalyptic number.
It is an amenable number.
28958713 is a deficient number, since it is larger than the sum of its proper divisors (4680007).
28958713 is an equidigital number, since it uses as much as digits as its factorization.
28958713 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 67887.
The product of its digits is 120960, while the sum is 43.
The square root of 28958713 is about 5381.3300400552. The cubic root of 28958713 is about 307.0858124660.
The spelling of 28958713 in words is "twenty-eight million, nine hundred fifty-eight thousand, seven hundred thirteen".
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