Base | Representation |
---|---|
bin | 111111011110111… |
… | …0110111110100010 |
3 | 12111110020120212011 |
4 | 1332331312332202 |
5 | 13330304121221 |
6 | 551212223134 |
7 | 103533635551 |
oct | 17675667642 |
9 | 5443216764 |
10 | 2130145186 |
11 | 9a3458674 |
12 | 4b546aaaa |
13 | 27c413c50 |
14 | 162c95d98 |
15 | c701e1e1 |
hex | 7ef76fa2 |
2130145186 has 32 divisors (see below), whose sum is σ = 3720971520. Its totient is φ = 905615616.
The previous prime is 2130145159. The next prime is 2130145187. The reversal of 2130145186 is 6815410312.
It is not an unprimeable number, because it can be changed into a prime (2130145187) 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, 30496 + ... + 72043.
It is an arithmetic number, because the mean of its divisors is an integer number (116280360).
Almost surely, 22130145186 is an apocalyptic number.
2130145186 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
2130145186 is a deficient number, since it is larger than the sum of its proper divisors (1590826334).
2130145186 is a wasteful number, since it uses less digits than its factorization.
2130145186 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102618.
The product of its (nonzero) digits is 5760, while the sum is 31.
The square root of 2130145186 is about 46153.4959239276. The cubic root of 2130145186 is about 1286.6775842571.
Adding to 2130145186 its reverse (6815410312), we get a palindrome (8945555498).
The spelling of 2130145186 in words is "two billion, one hundred thirty million, one hundred forty-five thousand, one hundred eighty-six".
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