Base | Representation |
---|---|
bin | 11010010000000… |
… | …00001110011111 |
3 | 120100100102012110 |
4 | 31020000032133 |
5 | 422332430022 |
6 | 33503405103 |
7 | 5312454003 |
oct | 1510001637 |
9 | 510312173 |
10 | 220201887 |
11 | 103330a34 |
12 | 618b3793 |
13 | 3680b599 |
14 | 21360703 |
15 | 144ea00c |
hex | d20039f |
220201887 has 16 divisors (see below), whose sum is σ = 314126720. Its totient is φ = 136792800.
The previous prime is 220201853. The next prime is 220201937. The reversal of 220201887 is 788102022.
It is a happy number.
It is not a de Polignac number, because 220201887 - 27 = 220201759 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (220201847) 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, 28189 + ... + 35142.
It is an arithmetic number, because the mean of its divisors is an integer number (19632920).
Almost surely, 2220201887 is an apocalyptic number.
220201887 is a deficient number, since it is larger than the sum of its proper divisors (93924833).
220201887 is a wasteful number, since it uses less digits than its factorization.
220201887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63414.
The product of its (nonzero) digits is 3584, while the sum is 30.
The square root of 220201887 is about 14839.2010229662. The cubic root of 220201887 is about 603.8656768609.
The spelling of 220201887 in words is "two hundred twenty million, two hundred one thousand, eight hundred eighty-seven".
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