Base | Representation |
---|---|
bin | 11010111111011111… |
… | …000010010000100011 |
3 | 2202210211110211210102 |
4 | 122333133002100203 |
5 | 433323442401442 |
6 | 21151521053015 |
7 | 2044132142165 |
oct | 327737022043 |
9 | 82724424712 |
10 | 28982387747 |
11 | 11322890975 |
12 | 574a18716b |
13 | 296b5cc581 |
14 | 158d234935 |
15 | b49619232 |
hex | 6bf7c2423 |
28982387747 has 8 divisors (see below), whose sum is σ = 29051470896. Its totient is φ = 28913388192.
The previous prime is 28982387743. The next prime is 28982387761. The reversal of 28982387747 is 74778328982.
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 28982387747 - 22 = 28982387743 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28982387743) 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, 702833 + ... + 742925.
It is an arithmetic number, because the mean of its divisors is an integer number (3631433862).
Almost surely, 228982387747 is an apocalyptic number.
28982387747 is a deficient number, since it is larger than the sum of its proper divisors (69083149).
28982387747 is an equidigital number, since it uses as much as digits as its factorization.
28982387747 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41797.
The product of its digits is 75866112, while the sum is 65.
The spelling of 28982387747 in words is "twenty-eight billion, nine hundred eighty-two million, three hundred eighty-seven thousand, seven hundred forty-seven".
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