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20323303013 = 131982280579
BaseRepresentation
bin10010111011010111…
…001111111001100101
31221110100212202121102
4102323113033321211
5313110231144023
613200354525445
71316426140166
oct227327177145
957410782542
1020323303013
118689a7a3a2
123b32296885
131bbb6743b0
14dab20376d
157de32e628
hex4bb5cfe65

20323303013 has 8 divisors (see below), whose sum is σ = 23038562400. Its totient is φ = 17772604848.

The previous prime is 20323303001. The next prime is 20323303067. The reversal of 20323303013 is 31030332302.

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 20323303013 - 210 = 20323301989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323303073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41140043 + ... + 41140536.

It is an arithmetic number, because the mean of its divisors is an integer number (2879820300).

Almost surely, 220323303013 is an apocalyptic number.

It is an amenable number.

20323303013 is a deficient number, since it is larger than the sum of its proper divisors (2715259387).

20323303013 is a wasteful number, since it uses less digits than its factorization.

20323303013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82280611.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20323303013 its reverse (31030332302), we get a palindrome (51353635315).

The spelling of 20323303013 in words is "twenty billion, three hundred twenty-three million, three hundred three thousand, thirteen".

Divisors: 1 13 19 247 82280579 1069647527 1563331001 20323303013