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20000013011 = 112238153287
BaseRepresentation
bin10010101000000101…
…111111101011010011
31220121211112221002122
4102220011333223103
5311430000404021
613104325404455
71305422206556
oct225005775323
956554487078
1020000013011
118533538880
123a61b6972b
131b696b0834
14d7a2ca69d
157c0c6ebab
hex4a817fad3

20000013011 has 8 divisors (see below), whose sum is σ = 21916038144. Its totient is φ = 18100294920.

The previous prime is 20000012999. The next prime is 20000013043. The reversal of 20000013011 is 11031000002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20000013011 is a prime.

It is a super-2 number, since 2×200000130112 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20000013011.

It is not an unprimeable number, because it can be changed into a prime (20000010011) 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, 4074191 + ... + 4079096.

It is an arithmetic number, because the mean of its divisors is an integer number (2739504768).

Almost surely, 220000013011 is an apocalyptic number.

20000013011 is a deficient number, since it is larger than the sum of its proper divisors (1916025133).

20000013011 is a wasteful number, since it uses less digits than its factorization.

20000013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8153521.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 20000013011 its reverse (11031000002), we get a palindrome (31031013013).

The spelling of 20000013011 in words is "twenty billion, thirteen thousand, eleven".

Divisors: 1 11 223 2453 8153287 89686157 1818183001 20000013011