Base | Representation |
---|---|
bin | 11010010001000001… |
… | …011000011110110000 |
3 | 2200210111122212012102 |
4 | 122101001120132300 |
5 | 430224413100022 |
6 | 20542313115532 |
7 | 2015615242646 |
oct | 322101303660 |
9 | 80714585172 |
10 | 28202862512 |
11 | 10a62865040 |
12 | 55710b8ba8 |
13 | 2875c67c36 |
14 | 15178b9196 |
15 | b00e88a92 |
hex | 6910587b0 |
28202862512 has 40 divisors (see below), whose sum is σ = 59620564992. Its totient is φ = 12817339200.
The previous prime is 28202862503. The next prime is 28202862517. The reversal of 28202862512 is 21526820282.
It is not an unprimeable number, because it can be changed into a prime (28202862517) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576337 + ... + 1594127.
Almost surely, 228202862512 is an apocalyptic number.
28202862512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
28202862512 is an abundant number, since it is smaller than the sum of its proper divisors (31417702480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28202862512 is a wasteful number, since it uses less digits than its factorization.
28202862512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26817 (or 26811 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 38.
The spelling of 28202862512 in words is "twenty-eight billion, two hundred two million, eight hundred sixty-two thousand, five hundred twelve".
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