Base | Representation |
---|---|
bin | 10010011100010111… |
… | …001110110111010010 |
3 | 1220010010020001100210 |
4 | 102130113032313102 |
5 | 311024110030244 |
6 | 13033015224550 |
7 | 1300512315522 |
oct | 223427166722 |
9 | 56103201323 |
10 | 19803205074 |
11 | 8442436094 |
12 | 3a08078156 |
13 | 1b379a3433 |
14 | d5c0d9682 |
15 | 7ad8464b9 |
hex | 49c5cedd2 |
19803205074 has 16 divisors (see below), whose sum is σ = 39637295712. Its totient is φ = 6595920768.
The previous prime is 19803205073. The next prime is 19803205099. The reversal of 19803205074 is 47050230891.
It is not an unprimeable number, because it can be changed into a prime (19803205073) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278559 + ... + 1293954.
It is an arithmetic number, because the mean of its divisors is an integer number (2477330982).
Almost surely, 219803205074 is an apocalyptic number.
19803205074 is an abundant number, since it is smaller than the sum of its proper divisors (19834090638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19803205074 is a wasteful number, since it uses less digits than its factorization.
19803205074 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2573801.
The product of its (nonzero) digits is 60480, while the sum is 39.
The spelling of 19803205074 in words is "nineteen billion, eight hundred three million, two hundred five thousand, seventy-four".
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