Base | Representation |
---|---|
bin | 111111011111011… |
… | …1010000111110010 |
3 | 12111110202120010020 |
4 | 1332332322013302 |
5 | 13330341421320 |
6 | 551222144310 |
7 | 103536162432 |
oct | 17676720762 |
9 | 5443676106 |
10 | 2130420210 |
11 | 9a3626266 |
12 | 4b5582096 |
13 | 27c4ac199 |
14 | 162d282c2 |
15 | c7075940 |
hex | 7efba1f2 |
2130420210 has 32 divisors (see below), whose sum is σ = 5114283840. Its totient is φ = 567970368.
The previous prime is 2130420209. The next prime is 2130420221. The reversal of 2130420210 is 120240312.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 2130420210.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178201 + ... + 189779.
It is an arithmetic number, because the mean of its divisors is an integer number (159821370).
Almost surely, 22130420210 is an apocalyptic number.
2130420210 is an abundant number, since it is smaller than the sum of its proper divisors (2983863630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130420210 is a wasteful number, since it uses less digits than its factorization.
2130420210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17722.
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 2130420210 is about 46156.4752770399. The cubic root of 2130420210 is about 1286.7329563807.
Adding to 2130420210 its reverse (120240312), we get a palindrome (2250660522).
It can be divided in two parts, 21304 and 20210, that added together give a palindrome (41514).
The spelling of 2130420210 in words is "two billion, one hundred thirty million, four hundred twenty thousand, two hundred ten".
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