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20333130013 = 722318041819
BaseRepresentation
bin10010111011111100…
…101111000100011101
31221111001101000201101
4102323330233010131
5313120240130023
613201345313101
71316605516300
oct227374570435
957431330641
1020333130013
118694581589
123b35635791
131bc07052a1
14dac640b37
157e01211ad
hex4bbf2f11d

20333130013 has 12 divisors (see below), whose sum is σ = 24681209760. Its totient is φ = 16670639832.

The previous prime is 20333130011. The next prime is 20333130017. The reversal of 20333130013 is 31003133302.

It is not a de Polignac number, because 20333130013 - 21 = 20333130011 is a prime.

It is a super-2 number, since 2×203331300132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333130011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9019783 + ... + 9022036.

It is an arithmetic number, because the mean of its divisors is an integer number (2056767480).

Almost surely, 220333130013 is an apocalyptic number.

20333130013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20333130013 is a deficient number, since it is larger than the sum of its proper divisors (4348079747).

20333130013 is a wasteful number, since it uses less digits than its factorization.

20333130013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18041856 (or 18041849 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20333130013 its reverse (31003133302), we get a palindrome (51336263315).

The spelling of 20333130013 in words is "twenty billion, three hundred thirty-three million, one hundred thirty thousand, thirteen".

Divisors: 1 7 23 49 161 1127 18041819 126292733 414961837 884049131 2904732859 20333130013