Base | Representation |
---|---|
bin | 111001110011… |
… | …1111010010001 |
3 | 2010000220112211 |
4 | 1303213322101 |
5 | 30224410113 |
6 | 3001352121 |
7 | 515426305 |
oct | 163477221 |
9 | 63026484 |
10 | 30310033 |
11 | 16122416 |
12 | a198641 |
13 | 6383140 |
14 | 404dd05 |
15 | 29dab3d |
hex | 1ce7e91 |
30310033 has 8 divisors (see below), whose sum is σ = 33694976. Its totient is φ = 27075600.
The previous prime is 30310019. The next prime is 30310037. The reversal of 30310033 is 33001303.
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 30310033 - 213 = 30301841 is a prime.
It is a super-2 number, since 2×303100332 = 1837396200922178, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30309995 and 30310022.
It is not an unprimeable number, because it can be changed into a prime (30310037) 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, 37203 + ... + 38008.
It is an arithmetic number, because the mean of its divisors is an integer number (4211872).
Almost surely, 230310033 is an apocalyptic number.
It is an amenable number.
30310033 is a deficient number, since it is larger than the sum of its proper divisors (3384943).
30310033 is a wasteful number, since it uses less digits than its factorization.
30310033 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75255.
The product of its (nonzero) digits is 81, while the sum is 13.
The square root of 30310033 is about 5505.4548404287. The cubic root of 30310033 is about 311.7899672597.
Adding to 30310033 its reverse (33001303), we get a palindrome (63311336).
The spelling of 30310033 in words is "thirty million, three hundred ten thousand, thirty-three".
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