Base | Representation |
---|---|
bin | 110011100011101… |
… | …1110011010011111 |
3 | 11110120022202110022 |
4 | 1213013132122133 |
5 | 12020340402311 |
6 | 443400102355 |
7 | 60604603121 |
oct | 14707363237 |
9 | 4416282408 |
10 | 1730012831 |
11 | 808602278 |
12 | 4034649bb |
13 | 217557341 |
14 | 125a99211 |
15 | a1d315db |
hex | 671de69f |
1730012831 has 2 divisors, whose sum is σ = 1730012832. Its totient is φ = 1730012830.
The previous prime is 1730012807. The next prime is 1730012839. The reversal of 1730012831 is 1382100371.
It is a strong prime.
It is an emirp because it is prime and its reverse (1382100371) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1730012831 is a prime.
It is a super-2 number, since 2×17300128312 = 5985888790849269122, which contains 22 as substring.
It is a Sophie Germain prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1730012831.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1730012839) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 865006415 + 865006416.
It is an arithmetic number, because the mean of its divisors is an integer number (865006416).
Almost surely, 21730012831 is an apocalyptic number.
1730012831 is a deficient number, since it is larger than the sum of its proper divisors (1).
1730012831 is an equidigital number, since it uses as much as digits as its factorization.
1730012831 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1008, while the sum is 26.
The square root of 1730012831 is about 41593.4229295931. The cubic root of 1730012831 is about 1200.4657523075.
The spelling of 1730012831 in words is "one billion, seven hundred thirty million, twelve thousand, eight hundred thirty-one".
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