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30340234 = 215170117
BaseRepresentation
bin111001110111…
…1010010001010
32010002102222101
41303233102022
530231341414
63002144014
7515613331
oct163572212
963072871
1030340234
1116143081
12a1b200a
136393b02
14405ad18
1529e4a74
hex1cef48a

30340234 has 4 divisors (see below), whose sum is σ = 45510354. Its totient is φ = 15170116.

The previous prime is 30340231. The next prime is 30340249. The reversal of 30340234 is 43204303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43204303 = 427310111.

It can be written as a sum of positive squares in only one way, i.e., 16834609 + 13505625 = 4103^2 + 3675^2 .

It is not an unprimeable number, because it can be changed into a prime (30340231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7585057 + ... + 7585060.

Almost surely, 230340234 is an apocalyptic number.

30340234 is a deficient number, since it is larger than the sum of its proper divisors (15170120).

30340234 is a wasteful number, since it uses less digits than its factorization.

30340234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170119.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 30340234 is about 5508.1969826795. The cubic root of 30340234 is about 311.8934890104.

Adding to 30340234 its reverse (43204303), we get a palindrome (73544537).

The spelling of 30340234 in words is "thirty million, three hundred forty thousand, two hundred thirty-four".

Divisors: 1 2 15170117 30340234