Base | Representation |
---|---|
bin | 11001011011100… |
… | …10110010110000 |
3 | 112212102100021121 |
4 | 30231302302300 |
5 | 414103043440 |
6 | 33100232024 |
7 | 5200166422 |
oct | 1455626260 |
9 | 485370247 |
10 | 213331120 |
11 | aa468912 |
12 | 5b53b614 |
13 | 35274142 |
14 | 20492812 |
15 | 13ade34a |
hex | cb72cb0 |
213331120 has 40 divisors (see below), whose sum is σ = 506556864. Its totient is φ = 83515392.
The previous prime is 213331109. The next prime is 213331169. The reversal of 213331120 is 21133312.
213331120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 213331094 and 213331103.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24609 + ... + 32128.
Almost surely, 2213331120 is an apocalyptic number.
213331120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
213331120 is an abundant number, since it is smaller than the sum of its proper divisors (293225744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213331120 is a wasteful number, since it uses less digits than its factorization.
213331120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56797 (or 56791 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 213331120 is about 14605.8590983208. The cubic root of 213331120 is about 597.5185664416.
Adding to 213331120 its reverse (21133312), we get a palindrome (234464432).
The spelling of 213331120 in words is "two hundred thirteen million, three hundred thirty-one thousand, one hundred twenty".
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