Base | Representation |
---|---|
bin | 10001110011110101… |
… | …001010110110001010 |
3 | 1211100201122120001020 |
4 | 101303311022312022 |
5 | 303131013441312 |
6 | 12441324133310 |
7 | 1244614260006 |
oct | 216365126612 |
9 | 54321576036 |
10 | 19123187082 |
11 | 81235a454a |
12 | 3858397236 |
13 | 1a59b3c21c |
14 | cd5a83706 |
15 | 76dcbe78c |
hex | 473d4ad8a |
19123187082 has 16 divisors (see below), whose sum is σ = 38347292640. Its totient is φ = 6357575952.
The previous prime is 19123187071. The next prime is 19123187099. The reversal of 19123187082 is 28078132191.
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, 4202473 + ... + 4207020.
It is an arithmetic number, because the mean of its divisors is an integer number (2396705790).
Almost surely, 219123187082 is an apocalyptic number.
19123187082 is an abundant number, since it is smaller than the sum of its proper divisors (19224105558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19123187082 is a wasteful number, since it uses less digits than its factorization.
19123187082 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8409877.
The product of its (nonzero) digits is 48384, while the sum is 42.
The spelling of 19123187082 in words is "nineteen billion, one hundred twenty-three million, one hundred eighty-seven thousand, eighty-two".
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