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20313331303 = 443190124121
BaseRepresentation
bin10010111010110001…
…001101011001100111
31221102200010010222211
4102322301031121213
5313100203100203
613155401104251
71316245316146
oct227261153147
957380103884
1020313331303
118684389511
123b2aa88087
131bb9592685
14da9b6975d
157dd50ec6d
hex4bac4d667

20313331303 has 8 divisors (see below), whose sum is σ = 20370739536. Its totient is φ = 20255976000.

The previous prime is 20313331301. The next prime is 20313331361. The reversal of 20313331303 is 30313331302.

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

It is a cyclic number.

It is not a de Polignac number, because 20313331303 - 21 = 20313331301 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 (20313331301) 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 7 ways as a sum of consecutive naturals, for example, 830083 + ... + 854203.

It is an arithmetic number, because the mean of its divisors is an integer number (2546342442).

Almost surely, 220313331303 is an apocalyptic number.

20313331303 is a deficient number, since it is larger than the sum of its proper divisors (57408233).

20313331303 is a wasteful number, since it uses less digits than its factorization.

20313331303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26465.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 20313331303 its reverse (30313331302), we get a palindrome (50626662605).

Subtracting 20313331303 from its reverse (30313331302), we obtain a palindrome (9999999999).

The spelling of 20313331303 in words is "twenty billion, three hundred thirteen million, three hundred thirty-one thousand, three hundred three".

Divisors: 1 443 1901 24121 842143 10685603 45854021 20313331303