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30924085 = 59763761
BaseRepresentation
bin111010111110…
…1110100110101
32011012002212111
41311331310311
530404032320
63022451021
7523564453
oct165756465
964162774
1030924085
11165017a5
12a433a71
13653979a
14416d9d3
152aaca5a
hex1d7dd35

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".

Divisors: 1 5 97 485 63761 318805 6184817 30924085