Base | Representation |
---|---|
bin | 111111011110101… |
… | …1101110111010000 |
3 | 12111110001100202022 |
4 | 1332331131313100 |
5 | 13330242323240 |
6 | 551210111012 |
7 | 103533026630 |
oct | 17675356720 |
9 | 5443040668 |
10 | 2130042320 |
11 | 9a339835a |
12 | 4b541b468 |
13 | 27c3a9193 |
14 | 162c6a6c0 |
15 | c6eed9b5 |
hex | 7ef5ddd0 |
2130042320 has 40 divisors (see below), whose sum is σ = 5659828224. Its totient is φ = 730300032.
The previous prime is 2130042301. The next prime is 2130042323. The reversal of 2130042320 is 232400312.
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130042323) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901264 + ... + 1902383.
Almost surely, 22130042320 is an apocalyptic number.
2130042320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2130042320 is an abundant number, since it is smaller than the sum of its proper divisors (3529785904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130042320 is a wasteful number, since it uses less digits than its factorization.
2130042320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3803667 (or 3803661 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 2130042320 is about 46152.3815203506. The cubic root of 2130042320 is about 1286.6568724440.
Adding to 2130042320 its reverse (232400312), we get a palindrome (2362442632).
The spelling of 2130042320 in words is "two billion, one hundred thirty million, forty-two thousand, three hundred twenty".
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