Base | Representation |
---|---|
bin | 110111111001… |
… | …0000000101111 |
3 | 2001010201221001 |
4 | 1233302000233 |
5 | 30000142311 |
6 | 2524021131 |
7 | 504032665 |
oct | 157620057 |
9 | 61121831 |
10 | 29302831 |
11 | 155a4718 |
12 | 99917a7 |
13 | 60bc86c |
14 | 3c6ac35 |
15 | 288c4c1 |
hex | 1bf202f |
29302831 has 2 divisors, whose sum is σ = 29302832. Its totient is φ = 29302830.
The previous prime is 29302813. The next prime is 29302859. The reversal of 29302831 is 13820392.
Together with previous prime (29302813) it forms an Ormiston pair, because they use the same digits, order apart.
It is an a-pointer prime, because the next prime (29302859) can be obtained adding 29302831 to its sum of digits (28).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 29302831 - 27 = 29302703 is a prime.
It is a super-2 number, since 2×293028312 = 1717311809229122, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 29302831.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (29302891) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14651415 + 14651416.
It is an arithmetic number, because the mean of its divisors is an integer number (14651416).
Almost surely, 229302831 is an apocalyptic number.
29302831 is a deficient number, since it is larger than the sum of its proper divisors (1).
29302831 is an equidigital number, since it uses as much as digits as its factorization.
29302831 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 29302831 is about 5413.2089374049. The cubic root of 29302831 is about 308.2973985554.
The spelling of 29302831 in words is "twenty-nine million, three hundred two thousand, eight hundred thirty-one".
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