Base | Representation |
---|---|
bin | 111011110101011001… |
… | …1011100101111101110 |
3 | 110021122221000101212000 |
4 | 1313222303130233232 |
5 | 4101123303012324 |
6 | 135010135353130 |
7 | 12166120640364 |
oct | 1675263345756 |
9 | 407587011760 |
10 | 128493407214 |
11 | 4a5481a6727 |
12 | 20aa02227a6 |
13 | c169a14803 |
14 | 630d36b634 |
15 | 35209659c9 |
hex | 1deacdcbee |
128493407214 has 32 divisors (see below), whose sum is σ = 300569376000. Its totient is φ = 40576865112.
The previous prime is 128493407213. The next prime is 128493407219. The reversal of 128493407214 is 412704394821.
128493407214 is a `hidden beast` number, since 1 + 28 + 4 + 9 + 3 + 407 + 214 = 666.
It is a self number, because there is not a number n which added to its sum of digits gives 128493407214.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128493407213) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62617594 + ... + 62619645.
It is an arithmetic number, because the mean of its divisors is an integer number (9392793000).
Almost surely, 2128493407214 is an apocalyptic number.
128493407214 is an abundant number, since it is smaller than the sum of its proper divisors (172075968786).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128493407214 is a wasteful number, since it uses less digits than its factorization.
128493407214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 125237269 (or 125237263 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 45.
The spelling of 128493407214 in words is "one hundred twenty-eight billion, four hundred ninety-three million, four hundred seven thousand, two hundred fourteen".
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