Base | Representation |
---|---|
bin | 111111011110110… |
… | …1110101011110110 |
3 | 12111110011212021020 |
4 | 1332331232223312 |
5 | 13330302024342 |
6 | 551211402010 |
7 | 103533434541 |
oct | 17675565366 |
9 | 5443155236 |
10 | 2130111222 |
11 | 9a34350a8 |
12 | 4b5453306 |
13 | 27c401655 |
14 | 162c87858 |
15 | c70140ec |
hex | 7ef6eaf6 |
2130111222 has 16 divisors (see below), whose sum is σ = 4269350592. Its totient is φ = 708515720.
The previous prime is 2130111187. The next prime is 2130111229. The reversal of 2130111222 is 2221110312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130111229) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377304 + ... + 382907.
It is an arithmetic number, because the mean of its divisors is an integer number (266834412).
Almost surely, 22130111222 is an apocalyptic number.
2130111222 is an abundant number, since it is smaller than the sum of its proper divisors (2139239370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130111222 is a wasteful number, since it uses less digits than its factorization.
2130111222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 760683.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 2130111222 is about 46153.1279763355. The cubic root of 2130111222 is about 1286.6707457640.
Adding to 2130111222 its reverse (2221110312), we get a palindrome (4351221534).
It can be divided in two parts, 21301 and 11222, that added together give a palindrome (32523).
The spelling of 2130111222 in words is "two billion, one hundred thirty million, one hundred eleven thousand, two hundred twenty-two".
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