Base | Representation |
---|---|
bin | 111010110010… |
… | …1000110011011 |
3 | 2010222221221121 |
4 | 1311211012123 |
5 | 30342312221 |
6 | 3020350111 |
7 | 522663265 |
oct | 165450633 |
9 | 63887847 |
10 | 30822811 |
11 | 164426a8 |
12 | a3a5337 |
13 | 6502666 |
14 | 4144b35 |
15 | 2a8ca41 |
hex | 1d6519b |
30822811 has 8 divisors (see below), whose sum is σ = 31173120. Its totient is φ = 30474792.
The previous prime is 30822809. The next prime is 30822821. The reversal of 30822811 is 11822803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30822811 - 21 = 30822809 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30822821) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42510 + ... + 43228.
It is an arithmetic number, because the mean of its divisors is an integer number (3896640).
Almost surely, 230822811 is an apocalyptic number.
30822811 is a deficient number, since it is larger than the sum of its proper divisors (350309).
30822811 is a wasteful number, since it uses less digits than its factorization.
30822811 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1145.
The product of its (nonzero) digits is 768, while the sum is 25.
The square root of 30822811 is about 5551.8295182759. The cubic root of 30822811 is about 313.5384071983.
The spelling of 30822811 in words is "thirty million, eight hundred twenty-two thousand, eight hundred eleven".
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