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20301211013 = 732331193557
BaseRepresentation
bin10010111010000010…
…111110010110000101
31221101211022101002012
4102322002332112011
5313034102223023
613154245224005
71316040306056
oct227202762605
957354271065
1020301211013
118678560346
123b26a02005
131bb6c0a9c5
14da82d272d
157dc418978
hex4ba0be585

20301211013 has 8 divisors (see below), whose sum is σ = 20667650328. Its totient is φ = 19937159424.

The previous prime is 20301210971. The next prime is 20301211019. The reversal of 20301211013 is 31011210302.

It can be written as a sum of positive squares in 4 ways, for example, as 5568592129 + 14732618884 = 74623^2 + 121378^2 .

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 20301211013 - 28 = 20301210757 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 (20301211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579770 + ... + 613787.

It is an arithmetic number, because the mean of its divisors is an integer number (2583456291).

Almost surely, 220301211013 is an apocalyptic number.

It is an amenable number.

20301211013 is a deficient number, since it is larger than the sum of its proper divisors (366439315).

20301211013 is a wasteful number, since it uses less digits than its factorization.

20301211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193863.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20301211013 its reverse (31011210302), we get a palindrome (51312421315).

The spelling of 20301211013 in words is "twenty billion, three hundred one million, two hundred eleven thousand, thirteen".

Divisors: 1 73 233 17009 1193557 87129661 278098781 20301211013