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30025075 = 521201003
BaseRepresentation
bin111001010001…
…0010101110011
32002111102122211
41302202111303
530141300300
62551312551
7513131443
oct162422563
962442584
1030025075
1115a48313
12a07b757
1362b3522
143db8123
1529814ba
hex1ca2573

30025075 has 6 divisors (see below), whose sum is σ = 37231124. Its totient is φ = 24020040.

The previous prime is 30025067. The next prime is 30025103. The reversal of 30025075 is 57052003.

It is not a de Polignac number, because 30025075 - 23 = 30025067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 600477 + ... + 600526.

Almost surely, 230025075 is an apocalyptic number.

30025075 is a deficient number, since it is larger than the sum of its proper divisors (7206049).

30025075 is a wasteful number, since it uses less digits than its factorization.

30025075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201013 (or 1201008 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 30025075 is about 5479.5141207957. The cubic root of 30025075 is about 310.8097974370.

Adding to 30025075 its reverse (57052003), we get a palindrome (87077078).

The spelling of 30025075 in words is "thirty million, twenty-five thousand, seventy-five".

Divisors: 1 5 25 1201003 6005015 30025075