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30242399 = 112749309
BaseRepresentation
bin111001101011…
…1011001011111
32002220110202212
41303113121133
530220224044
63000111035
7515025155
oct163273137
962813685
1030242399
1116086620
12a16547b
13635b415
1440333d5
1529c5a9e
hex1cd765f

30242399 has 4 divisors (see below), whose sum is σ = 32991720. Its totient is φ = 27493080.

The previous prime is 30242363. The next prime is 30242413. The reversal of 30242399 is 99324203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30242399 - 212 = 30238303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242299) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1374644 + ... + 1374665.

It is an arithmetic number, because the mean of its divisors is an integer number (8247930).

Almost surely, 230242399 is an apocalyptic number.

30242399 is a deficient number, since it is larger than the sum of its proper divisors (2749321).

30242399 is a wasteful number, since it uses less digits than its factorization.

30242399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749320.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30242399 is about 5499.3089565872. The cubic root of 30242399 is about 311.5578845132.

The spelling of 30242399 in words is "thirty million, two hundred forty-two thousand, three hundred ninety-nine".

Divisors: 1 11 2749309 30242399