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30320342 = 2138913103
BaseRepresentation
bin111001110101…
…0011011010110
32010001102200122
41303222123112
530230222332
63001511542
7515501333
oct163523326
963042618
1030320342
111612a138
12a1a25b2
136387a40
14405398a
1529ddc12
hex1cea6d6

30320342 has 16 divisors (see below), whose sum is σ = 49533120. Its totient is φ = 13835712.

The previous prime is 30320317. The next prime is 30320359. The reversal of 30320342 is 24302303.

It is a self number, because there is not a number n which added to its sum of digits gives 30320342.

It is a congruent number.

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, 4238 + ... + 8865.

It is an arithmetic number, because the mean of its divisors is an integer number (3095820).

Almost surely, 230320342 is an apocalyptic number.

30320342 is a deficient number, since it is larger than the sum of its proper divisors (19212778).

30320342 is a wasteful number, since it uses less digits than its factorization.

30320342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13207.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 30320342 is about 5506.3910140854. The cubic root of 30320342 is about 311.8253117548.

Adding to 30320342 its reverse (24302303), we get a palindrome (54622645).

The spelling of 30320342 in words is "thirty million, three hundred twenty thousand, three hundred forty-two".

Divisors: 1 2 13 26 89 178 1157 2314 13103 26206 170339 340678 1166167 2332334 15160171 30320342