Base | Representation |
---|---|
bin | 11010100000010010… |
… | …010001011110100110 |
3 | 2201110100112101011022 |
4 | 122200102101132212 |
5 | 431240442323033 |
6 | 21023542011142 |
7 | 2025145033250 |
oct | 324022213646 |
9 | 81410471138 |
10 | 28458948518 |
11 | 11084375270 |
12 | 5622a16ab2 |
13 | 28b702b810 |
14 | 153d8dacd0 |
15 | b186c1098 |
hex | 6a04917a6 |
28458948518 has 64 divisors (see below), whose sum is σ = 57448258560. Its totient is φ = 10211356800.
The previous prime is 28458948517. The next prime is 28458948523. The reversal of 28458948518 is 81584985482.
It is a super-3 number, since 3×284589485183 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28458948517) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 862688 + ... + 895068.
It is an arithmetic number, because the mean of its divisors is an integer number (897629040).
Almost surely, 228458948518 is an apocalyptic number.
28458948518 is an abundant number, since it is smaller than the sum of its proper divisors (28989310042).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28458948518 is a wasteful number, since it uses less digits than its factorization.
28458948518 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32853.
The product of its digits is 29491200, while the sum is 62.
The spelling of 28458948518 in words is "twenty-eight billion, four hundred fifty-eight million, nine hundred forty-eight thousand, five hundred eighteen".
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