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30242303 = 71317113173
BaseRepresentation
bin111001101011…
…1010111111111
32002220110122022
41303113113333
530220223203
63000110355
7515024660
oct163272777
962813568
1030242303
1116086543
12a1653bb
13635b370
144033367
1529c5a38
hex1cd75ff

30242303 has 32 divisors (see below), whose sum is σ = 39989376. Its totient is φ = 22192128.

The previous prime is 30242299. The next prime is 30242321. The reversal of 30242303 is 30324203.

It is not a de Polignac number, because 30242303 - 22 = 30242299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242353) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 174725 + ... + 174897.

It is an arithmetic number, because the mean of its divisors is an integer number (1249668).

Almost surely, 230242303 is an apocalyptic number.

30242303 is a deficient number, since it is larger than the sum of its proper divisors (9747073).

30242303 is a wasteful number, since it uses less digits than its factorization.

30242303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

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

The square root of 30242303 is about 5499.3002282109. The cubic root of 30242303 is about 311.5575548481.

Adding to 30242303 its reverse (30324203), we get a palindrome (60566506).

The spelling of 30242303 in words is "thirty million, two hundred forty-two thousand, three hundred three".

Divisors: 1 7 13 17 91 113 119 173 221 791 1211 1469 1547 1921 2249 2941 10283 13447 15743 19549 20587 24973 38233 136843 174811 254137 267631 332333 1778959 2326331 4320329 30242303