Base | Representation |
---|---|
bin | 1000010111011001111… |
… | …00000001101101010010 |
3 | 1000110221101201100020110 |
4 | 10023230330001231102 |
5 | 14202140402001041 |
6 | 340014405022150 |
7 | 26524051121331 |
oct | 4135474015522 |
9 | 1013841640213 |
10 | 287443000146 |
11 | 1009a4097475 |
12 | 478600b4956 |
13 | 2114b475793 |
14 | dcab571d18 |
15 | 77250b6516 |
hex | 42ecf01b52 |
287443000146 has 16 divisors (see below), whose sum is σ = 574893918144. Its totient is φ = 95813013744.
The previous prime is 287443000127. The next prime is 287443000147. The reversal of 287443000146 is 641000344782.
It is not an unprimeable number, because it can be changed into a prime (287443000147) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210000 + ... + 786756.
It is an arithmetic number, because the mean of its divisors is an integer number (35930869884).
Almost surely, 2287443000146 is an apocalyptic number.
287443000146 is an abundant number, since it is smaller than the sum of its proper divisors (287450917998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
287443000146 is a wasteful number, since it uses less digits than its factorization.
287443000146 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 659825.
The product of its (nonzero) digits is 129024, while the sum is 39.
The spelling of 287443000146 in words is "two hundred eighty-seven billion, four hundred forty-three million, one hundred forty-six", and thus it is an aban number.
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