Base | Representation |
---|---|
bin | 111011100111100… |
… | …100111000011111 |
3 | 2120201002222012112 |
4 | 323213210320133 |
5 | 4022024333211 |
6 | 243130224235 |
7 | 33533550464 |
oct | 7347447037 |
9 | 2521088175 |
10 | 1000230431 |
11 | 473670a22 |
12 | 23ab8507b |
13 | 12c2bb035 |
14 | 96bab66b |
15 | 5cc2988b |
hex | 3b9e4e1f |
1000230431 has 2 divisors, whose sum is σ = 1000230432. Its totient is φ = 1000230430.
The previous prime is 1000230421. The next prime is 1000230437. The reversal of 1000230431 is 1340320001.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1000230431 - 26 = 1000230367 is a prime.
It is a super-2 number, since 2×10002304312 = 2000921830196891522, which contains 22 as substring.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1000230437) by changing a digit.
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 as a sum of consecutive naturals, namely, 500115215 + 500115216.
It is an arithmetic number, because the mean of its divisors is an integer number (500115216).
Almost surely, 21000230431 is an apocalyptic number.
1000230431 is a deficient number, since it is larger than the sum of its proper divisors (1).
1000230431 is an equidigital number, since it uses as much as digits as its factorization.
1000230431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 1000230431 is about 31626.4198258355. The cubic root of 1000230431 is about 1000.0768044343.
Adding to 1000230431 its reverse (1340320001), we get a palindrome (2340550432).
The spelling of 1000230431 in words is "one billion, two hundred thirty thousand, four hundred thirty-one".
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