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30152230 = 255356891
BaseRepresentation
bin111001100000…
…1011000100110
32002201220002021
41303001120212
530204332410
62554133354
7514201243
oct163013046
962656067
1030152230
11160248a9
12a12125a
136329374
14400c5ca
1529a8eda
hex1cc1626

30152230 has 16 divisors (see below), whose sum is σ = 55299024. Its totient is φ = 11833120.

The previous prime is 30152219. The next prime is 30152231. The reversal of 30152230 is 3225103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152231) 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 7 ways as a sum of consecutive naturals, for example, 27916 + ... + 28975.

It is an arithmetic number, because the mean of its divisors is an integer number (3456189).

Almost surely, 230152230 is an apocalyptic number.

30152230 is a deficient number, since it is larger than the sum of its proper divisors (25146794).

30152230 is a wasteful number, since it uses less digits than its factorization.

30152230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56951.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30152230 is about 5491.1046247545. The cubic root of 30152230 is about 311.2479352347.

Adding to 30152230 its reverse (3225103), we get a palindrome (33377333).

The spelling of 30152230 in words is "thirty million, one hundred fifty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 56891 113782 284455 568910 3015223 6030446 15076115 30152230