Base | Representation |
---|---|
bin | 10001110001100111… |
… | …011011100010110100 |
3 | 1211021010201211112002 |
4 | 101301213123202310 |
5 | 303042010443103 |
6 | 12433515514432 |
7 | 1243653405221 |
oct | 216147334264 |
9 | 54233654462 |
10 | 19086031028 |
11 | 8104626669 |
12 | 3847a58a18 |
13 | 1a5222ccac |
14 | cd0b70948 |
15 | 76a8d0488 |
hex | 4719db8b4 |
19086031028 has 12 divisors (see below), whose sum is σ = 34852752480. Its totient is φ = 9128101752.
The previous prime is 19086031007. The next prime is 19086031033. The reversal of 19086031028 is 82013068091.
It is a junction number, because it is equal to n+sod(n) for n = 19086030982 and 19086031000.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103728338 + ... + 103728521.
It is an arithmetic number, because the mean of its divisors is an integer number (2904396040).
Almost surely, 219086031028 is an apocalyptic number.
It is an amenable number.
19086031028 is a deficient number, since it is larger than the sum of its proper divisors (15766721452).
19086031028 is a wasteful number, since it uses less digits than its factorization.
19086031028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 207456886 (or 207456884 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 38.
The spelling of 19086031028 in words is "nineteen billion, eighty-six million, thirty-one thousand, twenty-eight".
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