Base | Representation |
---|---|
bin | 11111100101111… |
… | …010001101000111 |
3 | 1100221100101102202 |
4 | 133211322031013 |
5 | 2041142001211 |
6 | 124332225115 |
7 | 16064123066 |
oct | 3745721507 |
9 | 1327311382 |
10 | 530031431 |
11 | 252209506 |
12 | 12960b19b |
13 | 85a6b487 |
14 | 505721dd |
15 | 317eb53b |
hex | 1f97a347 |
530031431 has 2 divisors, whose sum is σ = 530031432. Its totient is φ = 530031430.
The previous prime is 530031409. The next prime is 530031449. The reversal of 530031431 is 134130035.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-530031431 is a prime.
It is a super-2 number, since 2×5300314312 = 561866635695815522, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (530031331) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265015715 + 265015716.
It is an arithmetic number, because the mean of its divisors is an integer number (265015716).
Almost surely, 2530031431 is an apocalyptic number.
530031431 is a deficient number, since it is larger than the sum of its proper divisors (1).
530031431 is an equidigital number, since it uses as much as digits as its factorization.
530031431 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 540, while the sum is 20.
The square root of 530031431 is about 23022.4114940203. The cubic root of 530031431 is about 809.2832306740.
Adding to 530031431 its reverse (134130035), we get a palindrome (664161466).
The spelling of 530031431 in words is "five hundred thirty million, thirty-one thousand, four hundred thirty-one".
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