Base | Representation |
---|---|
bin | 11010001001101101… |
… | …011010010110000010 |
3 | 2200110221211021200211 |
4 | 122021231122112002 |
5 | 430002011434004 |
6 | 20522211504334 |
7 | 2012565435454 |
oct | 321155322602 |
9 | 80427737624 |
10 | 28080186754 |
11 | 109aa595a14 |
12 | 5537bb80aa |
13 | 2856715129 |
14 | 15054a42d4 |
15 | ae5305504 |
hex | 689b5a582 |
28080186754 has 32 divisors (see below), whose sum is σ = 45461606400. Its totient is φ = 12966066000.
The previous prime is 28080186737. The next prime is 28080186817. The reversal of 28080186754 is 45768108082.
It is a junction number, because it is equal to n+sod(n) for n = 28080186698 and 28080186707.
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, 416967 + ... + 479605.
It is an arithmetic number, because the mean of its divisors is an integer number (1420675200).
Almost surely, 228080186754 is an apocalyptic number.
28080186754 is a deficient number, since it is larger than the sum of its proper divisors (17381419646).
28080186754 is a wasteful number, since it uses less digits than its factorization.
28080186754 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62958.
The product of its (nonzero) digits is 860160, while the sum is 49.
The spelling of 28080186754 in words is "twenty-eight billion, eighty million, one hundred eighty-six thousand, seven hundred fifty-four".
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