Base | Representation |
---|---|
bin | 11010001001101101… |
… | …010110011101000110 |
3 | 2200110221210110211202 |
4 | 122021231112131012 |
5 | 430002010431242 |
6 | 20522211302502 |
7 | 2012565341144 |
oct | 321155263506 |
9 | 80427713752 |
10 | 28080170822 |
11 | 109aa584a50 |
12 | 5537baaa32 |
13 | 285670aac2 |
14 | 150549c594 |
15 | ae5300932 |
hex | 689b56746 |
28080170822 has 32 divisors (see below), whose sum is σ = 47450880000. Its totient is φ = 12346963200.
The previous prime is 28080170759. The next prime is 28080170827. The reversal of 28080170822 is 22807108082.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28080170827) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2038454 + ... + 2052182.
It is an arithmetic number, because the mean of its divisors is an integer number (1482840000).
Almost surely, 228080170822 is an apocalyptic number.
28080170822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
28080170822 is a deficient number, since it is larger than the sum of its proper divisors (19370709178).
28080170822 is a wasteful number, since it uses less digits than its factorization.
28080170822 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16772.
The product of its (nonzero) digits is 28672, while the sum is 38.
The spelling of 28080170822 in words is "twenty-eight billion, eighty million, one hundred seventy thousand, eight hundred twenty-two".
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