Base | Representation |
---|---|
bin | 10001101110010101… |
… | …110010001110101100 |
3 | 1211010022022201020210 |
4 | 101232111302032230 |
5 | 302433423324313 |
6 | 12424233542420 |
7 | 1242415312623 |
oct | 215625621654 |
9 | 54108281223 |
10 | 19031073708 |
11 | 80865aa399 |
12 | 3831574a10 |
13 | 1a43a2a37a |
14 | cc77466ba |
15 | 765b769c3 |
hex | 46e5723ac |
19031073708 has 24 divisors (see below), whose sum is σ = 47017947312. Its totient is φ = 5970532864.
The previous prime is 19031073643. The next prime is 19031073781. The reversal of 19031073708 is 80737013091.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46644585 + ... + 46644992.
It is an arithmetic number, because the mean of its divisors is an integer number (1959081138).
Almost surely, 219031073708 is an apocalyptic number.
It is an amenable number.
19031073708 is an abundant number, since it is smaller than the sum of its proper divisors (27986873604).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19031073708 is a wasteful number, since it uses less digits than its factorization.
19031073708 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93289601 (or 93289599 counting only the distinct ones).
The product of its (nonzero) digits is 31752, while the sum is 39.
Adding to 19031073708 its reverse (80737013091), we get a palindrome (99768086799).
The spelling of 19031073708 in words is "nineteen billion, thirty-one million, seventy-three thousand, seven hundred eight".
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