Base | Representation |
---|---|
bin | 11010001110001000… |
… | …011001001011101100 |
3 | 2200200010102010021002 |
4 | 122032020121023230 |
5 | 430130004244443 |
6 | 20533421455432 |
7 | 2014456120502 |
oct | 321610311354 |
9 | 80603363232 |
10 | 28154368748 |
11 | 10a38452a50 |
12 | 5558a11578 |
13 | 2868bb92bc |
14 | 1511294672 |
15 | aebaaa2b8 |
hex | 68e2192ec |
28154368748 has 24 divisors (see below), whose sum is σ = 53770195920. Its totient is φ = 12792453120.
The previous prime is 28154368709. The next prime is 28154368757. The reversal of 28154368748 is 84786345182.
It is a junction number, because it is equal to n+sod(n) for n = 28154368693 and 28154368702.
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, 9293 + ... + 237476.
It is an arithmetic number, because the mean of its divisors is an integer number (2240424830).
Almost surely, 228154368748 is an apocalyptic number.
It is an amenable number.
28154368748 is a deficient number, since it is larger than the sum of its proper divisors (25615827172).
28154368748 is a wasteful number, since it uses less digits than its factorization.
28154368748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 249377 (or 249375 counting only the distinct ones).
The product of its digits is 10321920, while the sum is 56.
The spelling of 28154368748 in words is "twenty-eight billion, one hundred fifty-four million, three hundred sixty-eight thousand, seven hundred forty-eight".
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