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30200142 = 2375313567
BaseRepresentation
bin111001100110…
…1000101001110
32002211022210210
41303031011032
530212401032
62555143250
7514461030
oct163150516
962738723
1030200142
11160578a5
12a144b26
13634510b
144021c50
1529b82cc
hex1ccd14e

30200142 has 32 divisors (see below), whose sum is σ = 70336512. Its totient is φ = 8465184.

The previous prime is 30200141. The next prime is 30200167. The reversal of 30200142 is 24100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30200141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4558 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (2198016).

Almost surely, 230200142 is an apocalyptic number.

30200142 is an abundant number, since it is smaller than the sum of its proper divisors (40136370).

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

30200142 is a wasteful number, since it uses less digits than its factorization.

30200142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13632.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30200142 is about 5495.4655853713. The cubic root of 30200142 is about 311.4127060146.

Adding to 30200142 its reverse (24100203), we get a palindrome (54300345).

The spelling of 30200142 in words is "thirty million, two hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 53 106 159 318 371 742 1113 2226 13567 27134 40701 81402 94969 189938 284907 569814 719051 1438102 2157153 4314306 5033357 10066714 15100071 30200142