Base | Representation |
---|---|
bin | 10010001000011001… |
… | …101000101010111011 |
3 | 1212020210000122021110 |
4 | 102020121220222323 |
5 | 304332340300442 |
6 | 12535453011403 |
7 | 1256304512103 |
oct | 221031505273 |
9 | 55223018243 |
10 | 19468290747 |
11 | 8290384a94 |
12 | 3933a83b63 |
13 | 1ab349c889 |
14 | d29838203 |
15 | 78e23c69c |
hex | 488668abb |
19468290747 has 6 divisors (see below), whose sum is σ = 25958043228. Its totient is φ = 12978699384.
The previous prime is 19468290713. The next prime is 19468290763. The reversal of 19468290747 is 74709286491.
It is a happy number.
It is not a de Polignac number, because 19468290747 - 210 = 19468289723 is a prime.
It is not an unprimeable number, because it can be changed into a prime (19468290547) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201393 + ... + 281949.
It is an arithmetic number, because the mean of its divisors is an integer number (4326340538).
Almost surely, 219468290747 is an apocalyptic number.
19468290747 is a deficient number, since it is larger than the sum of its proper divisors (6489752481).
19468290747 is an frugal number, since it uses more digits than its factorization.
19468290747 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161117 (or 80560 counting only the distinct ones).
The product of its (nonzero) digits is 6096384, while the sum is 57.
The spelling of 19468290747 in words is "nineteen billion, four hundred sixty-eight million, two hundred ninety thousand, seven hundred forty-seven".
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