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30142334 = 292916223
BaseRepresentation
bin111001011111…
…0111101111110
32002201101111202
41302332331332
530204023314
62554015502
7514130345
oct162767576
962641452
1030142334
1116018422
12a117592
136324a01
144008b5c
1529a60de
hex1cbef7e

30142334 has 8 divisors (see below), whose sum is σ = 45264960. Its totient is φ = 15054016.

The previous prime is 30142313. The next prime is 30142361. The reversal of 30142334 is 43324103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6254 + ... + 9969.

It is an arithmetic number, because the mean of its divisors is an integer number (5658120).

Almost surely, 230142334 is an apocalyptic number.

30142334 is a deficient number, since it is larger than the sum of its proper divisors (15122626).

30142334 is a wasteful number, since it uses less digits than its factorization.

30142334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17154.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30142334 is about 5490.2034570679. The cubic root of 30142334 is about 311.2138808536.

Adding to 30142334 its reverse (43324103), we get a palindrome (73466437).

The spelling of 30142334 in words is "thirty million, one hundred forty-two thousand, three hundred thirty-four".

Divisors: 1 2 929 1858 16223 32446 15071167 30142334