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20300244303 = 322735298447
BaseRepresentation
bin10010111001111111…
…010010010101001111
31221101202111021000010
4102321333102111033
5313033330304203
613154212404303
71316026141503
oct227177222517
957352437003
1020300244303
118677a60009
123b26616693
131bb695c9a1
14da8120303
157dc2c7303
hex4b9fd254f

20300244303 has 16 divisors (see below), whose sum is σ = 27197153280. Its totient is φ = 13468464576.

The previous prime is 20300244169. The next prime is 20300244319. The reversal of 20300244303 is 30344200302.

It is not a de Polignac number, because 20300244303 - 225 = 20266689871 is a prime.

It is a super-2 number, since 2×203002443032 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20300244303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300244343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2399026 + ... + 2407472.

It is an arithmetic number, because the mean of its divisors is an integer number (1699822080).

Almost surely, 220300244303 is an apocalyptic number.

20300244303 is a deficient number, since it is larger than the sum of its proper divisors (6896908977).

20300244303 is a wasteful number, since it uses less digits than its factorization.

20300244303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12206.

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20300244303 its reverse (30344200302), we get a palindrome (50644444605).

The spelling of 20300244303 in words is "twenty billion, three hundred million, two hundred forty-four thousand, three hundred three".

Divisors: 1 3 227 681 3529 8447 10587 25341 801083 1917469 2403249 5752407 29809463 89428389 6766748101 20300244303