Base | Representation |
---|---|
bin | 11010011101110110… |
… | …100010011111100100 |
3 | 2201100111201021002210 |
4 | 122131312202133210 |
5 | 431200014424443 |
6 | 21015523003420 |
7 | 2024141031510 |
oct | 323566423744 |
9 | 81314637083 |
10 | 28418123748 |
11 | 11063320a93 |
12 | 5611209570 |
13 | 28ab736751 |
14 | 1538311140 |
15 | b14d09c33 |
hex | 69dda27e4 |
28418123748 has 24 divisors (see below), whose sum is σ = 75781663552. Its totient is φ = 8119463904.
The previous prime is 28418123719. The next prime is 28418123879. The reversal of 28418123748 is 84732181482.
It is a junction number, because it is equal to n+sod(n) for n = 28418123697 and 28418123706.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169155415 + ... + 169155582.
Almost surely, 228418123748 is an apocalyptic number.
28418123748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
28418123748 is an abundant number, since it is smaller than the sum of its proper divisors (47363539804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28418123748 is a wasteful number, since it uses less digits than its factorization.
28418123748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 338311011 (or 338311009 counting only the distinct ones).
The product of its digits is 688128, while the sum is 48.
The spelling of 28418123748 in words is "twenty-eight billion, four hundred eighteen million, one hundred twenty-three thousand, seven hundred forty-eight".
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