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30673305 = 3251352433
BaseRepresentation
bin111010100000…
…0100110011001
32010201100212100
41311000212121
530323021210
63013234013
7521501355
oct165004631
963640770
1030673305
1116350343
12a332909
13647c5b0
144106465
152a5d5c0
hex1d40999

30673305 has 24 divisors (see below), whose sum is σ = 57257928. Its totient is φ = 15100416.

The previous prime is 30673241. The next prime is 30673309. The reversal of 30673305 is 50337603.

It can be written as a sum of positive squares in 4 ways, for example, as 2509056 + 28164249 = 1584^2 + 5307^2 .

It is not a de Polignac number, because 30673305 - 26 = 30673241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30673309) 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 in 23 ways as a sum of consecutive naturals, for example, 25632 + ... + 26801.

It is an arithmetic number, because the mean of its divisors is an integer number (2385747).

Almost surely, 230673305 is an apocalyptic number.

It is an amenable number.

30673305 is a deficient number, since it is larger than the sum of its proper divisors (26584623).

30673305 is a wasteful number, since it uses less digits than its factorization.

30673305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52457 (or 52454 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 30673305 is about 5538.3485805789. The cubic root of 30673305 is about 313.0306461502.

The spelling of 30673305 in words is "thirty million, six hundred seventy-three thousand, three hundred five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 52433 157299 262165 471897 681629 786495 2044887 2359485 3408145 6134661 10224435 30673305