Base | Representation |
---|---|
bin | 11010101000101101… |
… | …100011101110001100 |
3 | 2201211012112201210220 |
4 | 122220231203232030 |
5 | 432033140200420 |
6 | 21045552031340 |
7 | 2031512461551 |
oct | 325055435614 |
9 | 81735481726 |
10 | 28600318860 |
11 | 11147152963 |
12 | 5662232550 |
13 | 290a3c87c9 |
14 | 15545baa28 |
15 | b25ce8840 |
hex | 6a8b63b8c |
28600318860 has 72 divisors (see below), whose sum is σ = 84517571376. Its totient is φ = 7225338240.
The previous prime is 28600318843. The next prime is 28600318919. The reversal of 28600318860 is 6881300682.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638551 + ... + 681870.
It is an arithmetic number, because the mean of its divisors is an integer number (1173855158).
Almost surely, 228600318860 is an apocalyptic number.
28600318860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28600318860 is an abundant number, since it is smaller than the sum of its proper divisors (55917252516).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28600318860 is a wasteful number, since it uses less digits than its factorization.
28600318860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1320471 (or 1320450 counting only the distinct ones).
The product of its (nonzero) digits is 110592, while the sum is 42.
The spelling of 28600318860 in words is "twenty-eight billion, six hundred million, three hundred eighteen thousand, eight hundred sixty".
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