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20303102303 = 114184344111
BaseRepresentation
bin10010111010001010…
…001100000101011111
31221101221212110102222
4102322022030011133
5313040043233203
613154353535555
71316062344041
oct227212140537
957357773388
1020303102303
1186796322a0
123b275745bb
131bb7420803
14da8665a91
157dc68e038
hex4ba28c15f

20303102303 has 8 divisors (see below), whose sum is σ = 22149870336. Its totient is φ = 18456506200.

The previous prime is 20303102293. The next prime is 20303102357. The reversal of 20303102303 is 30320130302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20303102303 - 220 = 20302053727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303102003) 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 7 ways as a sum of consecutive naturals, for example, 438218 + ... + 482328.

It is an arithmetic number, because the mean of its divisors is an integer number (2768733792).

Almost surely, 220303102303 is an apocalyptic number.

20303102303 is a deficient number, since it is larger than the sum of its proper divisors (1846768033).

20303102303 is a wasteful number, since it uses less digits than its factorization.

20303102303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85965.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20303102303 its reverse (30320130302), we get a palindrome (50623232605).

The spelling of 20303102303 in words is "twenty billion, three hundred three million, one hundred two thousand, three hundred three".

Divisors: 1 11 41843 44111 460273 485221 1845736573 20303102303