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30340534 = 2721110271
BaseRepresentation
bin111001110111…
…1010110110110
32010002110101111
41303233112312
530231344114
63002145234
7515614240
oct163572666
963073344
1030340534
1116143324
12a1b221a
136393ca3
14405b090
1529e4bc4
hex1cef5b6

30340534 has 16 divisors (see below), whose sum is σ = 52263936. Its totient is φ = 12940200.

The previous prime is 30340507. The next prime is 30340543. The reversal of 30340534 is 43504303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2182 + ... + 8089.

It is an arithmetic number, because the mean of its divisors is an integer number (3266496).

Almost surely, 230340534 is an apocalyptic number.

30340534 is a deficient number, since it is larger than the sum of its proper divisors (21923402).

30340534 is a wasteful number, since it uses less digits than its factorization.

30340534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10491.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 30340534 is about 5508.2242147538. The cubic root of 30340534 is about 311.8945169934.

Adding to 30340534 its reverse (43504303), we get a palindrome (73844837).

The spelling of 30340534 in words is "thirty million, three hundred forty thousand, five hundred thirty-four".

Divisors: 1 2 7 14 211 422 1477 2954 10271 20542 71897 143794 2167181 4334362 15170267 30340534