Base | Representation |
---|---|
bin | 111111011111101… |
… | …0011100111100000 |
3 | 12111110221212101000 |
4 | 1332333103213200 |
5 | 13330403242030 |
6 | 551224312000 |
7 | 103540106046 |
oct | 17677234740 |
9 | 5443855330 |
10 | 2130524640 |
11 | 9a3697772 |
12 | 4b5612600 |
13 | 27c51788a |
14 | 162d54396 |
15 | c7096860 |
hex | 7efd39e0 |
2130524640 has 96 divisors (see below), whose sum is σ = 7456851360. Its totient is φ = 568138752.
The previous prime is 2130524621. The next prime is 2130524647. The reversal of 2130524640 is 464250312.
2130524640 is a `hidden beast` number, since 2 + 13 + 0 + 5 + 2 + 4 + 640 = 666.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130524647) 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, 242269 + ... + 250908.
It is an arithmetic number, because the mean of its divisors is an integer number (77675535).
Almost surely, 22130524640 is an apocalyptic number.
2130524640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2130524640 is an abundant number, since it is smaller than the sum of its proper divisors (5326326720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130524640 is a wasteful number, since it uses less digits than its factorization.
2130524640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 493201 (or 493187 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 27.
The square root of 2130524640 is about 46157.6065237356. The cubic root of 2130524640 is about 1286.7539806098.
Adding to 2130524640 its reverse (464250312), we get a palindrome (2594774952).
The spelling of 2130524640 in words is "two billion, one hundred thirty million, five hundred twenty-four thousand, six hundred forty".
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