Base | Representation |
---|---|
bin | 111010111110… |
… | …1110100110101 |
3 | 2011012002212111 |
4 | 1311331310311 |
5 | 30404032320 |
6 | 3022451021 |
7 | 523564453 |
oct | 165756465 |
9 | 64162774 |
10 | 30924085 |
11 | 165017a5 |
12 | a433a71 |
13 | 653979a |
14 | 416d9d3 |
15 | 2aaca5a |
hex | 1d7dd35 |
30924085 has 8 divisors (see below), whose sum is σ = 37492056. Its totient is φ = 24483840.
The previous prime is 30924067. The next prime is 30924097. The reversal of 30924085 is 58042903.
It can be written as a sum of positive squares in 4 ways, for example, as 5340721 + 25583364 = 2311^2 + 5058^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30924085 - 219 = 30399797 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31396 + ... + 32365.
It is an arithmetic number, because the mean of its divisors is an integer number (4686507).
Almost surely, 230924085 is an apocalyptic number.
It is an amenable number.
30924085 is a deficient number, since it is larger than the sum of its proper divisors (6567971).
30924085 is an equidigital number, since it uses as much as digits as its factorization.
30924085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63863.
The product of its (nonzero) digits is 8640, while the sum is 31.
The square root of 30924085 is about 5560.9428157463. The cubic root of 30924085 is about 313.8814277717.
Adding to 30924085 its reverse (58042903), we get a palindrome (88966988).
The spelling of 30924085 in words is "thirty million, nine hundred twenty-four thousand, eighty-five".
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