Base | Representation |
---|---|
bin | 11111001011111100100… |
… | …000101000010010010100 |
3 | 21120212210102102120121212 |
4 | 133023330200220102110 |
5 | 240103112303003320 |
6 | 4320312420200552 |
7 | 310556522332412 |
oct | 37137440502224 |
9 | 7525712376555 |
10 | 2143130125460 |
11 | 7569950a2575 |
12 | 2a7429b39158 |
13 | 12713376b4bc |
14 | 75a29ab82b2 |
15 | 3ab338e89c5 |
hex | 1f2fc828494 |
2143130125460 has 24 divisors (see below), whose sum is σ = 4500604287816. Its totient is φ = 857246140800.
The previous prime is 2143130125457. The next prime is 2143130125517. The reversal of 2143130125460 is 645210313412.
It can be written as a sum of positive squares in 4 ways, for example, as 295933824004 + 1847196301456 = 543998^2 + 1359116^2 .
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3695834 + ... + 4236206.
It is an arithmetic number, because the mean of its divisors is an integer number (187525178659).
Almost surely, 22143130125460 is an apocalyptic number.
2143130125460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2143130125460 is an abundant number, since it is smaller than the sum of its proper divisors (2357474162356).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2143130125460 is a wasteful number, since it uses less digits than its factorization.
2143130125460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 738683 (or 738681 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 32.
Adding to 2143130125460 its reverse (645210313412), we get a palindrome (2788340438872).
The spelling of 2143130125460 in words is "two trillion, one hundred forty-three billion, one hundred thirty million, one hundred twenty-five thousand, four hundred sixty".
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