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20310013303 = 113811221621
BaseRepresentation
bin10010111010100100…
…100011010101110111
31221102102212120112221
4102322210203111313
5313043330411203
613155202023211
71316205156526
oct227244432567
957372776487
1020310013303
118682522668
123b29947b07
131bb89a0368
14da95444bd
157dd0a6abd
hex4ba923577

20310013303 has 8 divisors (see below), whose sum is σ = 20515105296. Its totient is φ = 20105366400.

The previous prime is 20310013301. The next prime is 20310013307. The reversal of 20310013303 is 30331001302.

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 20310013303 - 21 = 20310013301 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 (20310013301) 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, 19168 + ... + 202453.

It is an arithmetic number, because the mean of its divisors is an integer number (2564388162).

Almost surely, 220310013303 is an apocalyptic number.

20310013303 is a deficient number, since it is larger than the sum of its proper divisors (205091993).

20310013303 is a wasteful number, since it uses less digits than its factorization.

20310013303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222545.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20310013303 its reverse (30331001302), we get a palindrome (50641014605).

The spelling of 20310013303 in words is "twenty billion, three hundred ten million, thirteen thousand, three hundred three".

Divisors: 1 113 811 91643 221621 25043173 179734631 20310013303