Search a number
-
+
30015050 = 2521361757
BaseRepresentation
bin111001001111…
…1111001001010
32002110220220112
41302133321022
530140440200
62551154322
7513060302
oct162377112
962426815
1030015050
1115a4082a
12a0759a2
1362abab0
143db4602
15297d535
hex1c9fe4a

30015050 has 48 divisors (see below), whose sum is σ = 61188792. Its totient is φ = 10886400.

The previous prime is 30015043. The next prime is 30015067. The reversal of 30015050 is 5051003.

It can be written as a sum of positive squares in 12 ways, for example, as 1038361 + 28976689 = 1019^2 + 5383^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39272 + ... + 40028.

Almost surely, 230015050 is an apocalyptic number.

30015050 is an abundant number, since it is smaller than the sum of its proper divisors (31173742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30015050 is a wasteful number, since it uses less digits than its factorization.

30015050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 30015050 is about 5478.5992735370. The cubic root of 30015050 is about 310.7752017414.

Adding to 30015050 its reverse (5051003), we get a palindrome (35066053).

The spelling of 30015050 in words is "thirty million, fifteen thousand, fifty".

Divisors: 1 2 5 10 13 25 26 50 61 65 122 130 305 325 610 650 757 793 1514 1525 1586 3050 3785 3965 7570 7930 9841 18925 19682 19825 37850 39650 46177 49205 92354 98410 230885 246025 461770 492050 600301 1154425 1200602 2308850 3001505 6003010 15007525 30015050