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30162230 = 2571074027
BaseRepresentation
bin111001100001…
…1110100110110
32002202101210122
41303003310312
530210142410
62554251542
7514242350
oct163036466
962671718
1030162230
111603136a
12a126bb2
136330a97
1440120d0
1529abe55
hex1cc3d36

30162230 has 32 divisors (see below), whose sum is σ = 62643456. Its totient is φ = 10242144.

The previous prime is 30162229. The next prime is 30162257. The reversal of 30162230 is 3226103.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30162199 and 30162208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5477 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (1957608).

Almost surely, 230162230 is an apocalyptic number.

30162230 is an abundant number, since it is smaller than the sum of its proper divisors (32481226).

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

30162230 is a wasteful number, since it uses less digits than its factorization.

30162230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30162230 is about 5492.0151128707. The cubic root of 30162230 is about 311.2823399352.

Adding to 30162230 its reverse (3226103), we get a palindrome (33388333).

The spelling of 30162230 in words is "thirty million, one hundred sixty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 107 214 535 749 1070 1498 3745 4027 7490 8054 20135 28189 40270 56378 140945 281890 430889 861778 2154445 3016223 4308890 6032446 15081115 30162230