Base | Representation |
---|---|
bin | 11010011101110100… |
… | …110001111111100100 |
3 | 2201100110211212000010 |
4 | 122131310301333210 |
5 | 431144410203243 |
6 | 21015505050220 |
7 | 2024134102203 |
oct | 323564617744 |
9 | 81313755003 |
10 | 28417662948 |
11 | 11063036864 |
12 | 5611026970 |
13 | 28ab604a9c |
14 | 153823123a |
15 | b14c68433 |
hex | 69dd31fe4 |
28417662948 has 48 divisors (see below), whose sum is σ = 68861479680. Its totient is φ = 9110298624.
The previous prime is 28417662929. The next prime is 28417662979. The reversal of 28417662948 is 84926671482.
It is a super-2 number, since 2×284176629482 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69436 + ... + 248307.
It is an arithmetic number, because the mean of its divisors is an integer number (1434614160).
Almost surely, 228417662948 is an apocalyptic number.
It is an amenable number.
28417662948 is an abundant number, since it is smaller than the sum of its proper divisors (40443816732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28417662948 is a wasteful number, since it uses less digits than its factorization.
28417662948 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 318036 (or 318034 counting only the distinct ones).
The product of its digits is 9289728, while the sum is 57.
The spelling of 28417662948 in words is "twenty-eight billion, four hundred seventeen million, six hundred sixty-two thousand, nine hundred forty-eight".
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