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30135234 = 2329173191
BaseRepresentation
bin111001011110…
…1001111000010
32002201000202210
41302331033002
530203311414
62553522550
7514100553
oct162751702
962630683
1030135234
1116013058
12a113456
1363216cc
14400632a
1529a3e59
hex1cbd3c2

30135234 has 16 divisors (see below), whose sum is σ = 62349120. Its totient is φ = 9698640.

The previous prime is 30135229. The next prime is 30135251. The reversal of 30135234 is 43253103.

It is a self number, because there is not a number n which added to its sum of digits gives 30135234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86422 + ... + 86769.

It is an arithmetic number, because the mean of its divisors is an integer number (3896820).

Almost surely, 230135234 is an apocalyptic number.

30135234 is an abundant number, since it is smaller than the sum of its proper divisors (32213886).

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

30135234 is a wasteful number, since it uses less digits than its factorization.

30135234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173225.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30135234 is about 5489.5568127127. The cubic root of 30135234 is about 311.1894435503.

Adding to 30135234 its reverse (43253103), we get a palindrome (73388337).

The spelling of 30135234 in words is "thirty million, one hundred thirty-five thousand, two hundred thirty-four".

Divisors: 1 2 3 6 29 58 87 174 173191 346382 519573 1039146 5022539 10045078 15067617 30135234