Base | Representation |
---|---|
bin | 1000011001110100101… |
… | …11110111001101101111 |
3 | 1000121021221021121222012 |
4 | 10030322113313031233 |
5 | 14212320442032311 |
6 | 340351334111435 |
7 | 26601204501332 |
oct | 4147227671557 |
9 | 1017257247865 |
10 | 288742142831 |
11 | 10150045960a |
12 | 47b631ab57b |
13 | 212c767046c |
14 | dd91d0c619 |
15 | 779e18778b |
hex | 433a5f736f |
288742142831 has 2 divisors, whose sum is σ = 288742142832. Its totient is φ = 288742142830.
The previous prime is 288742142813. The next prime is 288742142833. The reversal of 288742142831 is 138241247882.
Together with previous prime (288742142813) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-288742142831 is a prime.
It is a super-2 number, since 2×2887421428312 (a number of 24 digits) contains 22 as substring.
It is a Sophie Germain prime.
Together with 288742142833, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 288742142831.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (288742142833) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144371071415 + 144371071416.
It is an arithmetic number, because the mean of its divisors is an integer number (144371071416).
Almost surely, 2288742142831 is an apocalyptic number.
288742142831 is a deficient number, since it is larger than the sum of its proper divisors (1).
288742142831 is an equidigital number, since it uses as much as digits as its factorization.
288742142831 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1376256, while the sum is 50.
The spelling of 288742142831 in words is "two hundred eighty-eight billion, seven hundred forty-two million, one hundred forty-two thousand, eight hundred thirty-one".
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