Base | Representation |
---|---|
bin | 111001010001… |
… | …0000000011111 |
3 | 2002111100210022 |
4 | 1302202000133 |
5 | 30141224321 |
6 | 2551302355 |
7 | 513124454 |
oct | 162420037 |
9 | 62440708 |
10 | 30023711 |
11 | 15a47293 |
12 | a07a9bb |
13 | 62b2a13 |
14 | 3db782b |
15 | 2980dab |
hex | 1ca201f |
30023711 has 2 divisors, whose sum is σ = 30023712. Its totient is φ = 30023710.
The previous prime is 30023663. The next prime is 30023797. The reversal of 30023711 is 11732003.
It is a weak prime.
It is an emirp because it is prime and its reverse (11732003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30023711 - 210 = 30022687 is a prime.
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 30023711.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30023311) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15011855 + 15011856.
It is an arithmetic number, because the mean of its divisors is an integer number (15011856).
Almost surely, 230023711 is an apocalyptic number.
30023711 is a deficient number, since it is larger than the sum of its proper divisors (1).
30023711 is an equidigital number, since it uses as much as digits as its factorization.
30023711 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 126, while the sum is 17.
The square root of 30023711 is about 5479.3896557920. The cubic root of 30023711 is about 310.8050908045.
Adding to 30023711 its reverse (11732003), we get a palindrome (41755714).
The spelling of 30023711 in words is "thirty million, twenty-three thousand, seven hundred eleven".
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