Base | Representation |
---|---|
bin | 1100111000001010011000… |
… | …11001010000100110110000 |
3 | 10201021011201011222011120021 |
4 | 12130011030121100212300 |
5 | 12202430231233310220 |
6 | 140121035440453224 |
7 | 5651623315403563 |
oct | 634051431204660 |
9 | 121234634864507 |
10 | 28318001072560 |
11 | 90286623a1841 |
12 | 321427531a214 |
13 | 12a54b7221304 |
14 | 6dc8546684da |
15 | 3419399c64aa |
hex | 19c14c6509b0 |
28318001072560 has 80 divisors (see below), whose sum is σ = 65901446849952. Its totient is φ = 11316522700800.
The previous prime is 28318001072513. The next prime is 28318001072629. The reversal of 28318001072560 is 6527010081382.
It is a tau number, because it is divible by the number of its divisors (80).
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, 370097827 + ... + 370174333.
Almost surely, 228318001072560 is an apocalyptic number.
28318001072560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28318001072560 is an abundant number, since it is smaller than the sum of its proper divisors (37583445777392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28318001072560 is a wasteful number, since it uses less digits than its factorization.
28318001072560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80822 (or 80816 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 43.
The spelling of 28318001072560 in words is "twenty-eight trillion, three hundred eighteen billion, one million, seventy-two thousand, five hundred sixty".
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