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20000003011 = 70132851847
BaseRepresentation
bin10010101000000101…
…111101001111000011
31220121211112102101021
4102220011331033003
5311430000044021
613104325250311
71305422135452
oct225005751703
956554472337
1020000003011
11853353130a
123a61b63997
131b696a9111
14d7a2c6b99
157c0c6bc41
hex4a817d3c3

20000003011 has 4 divisors (see below), whose sum is σ = 20002861872. Its totient is φ = 19997144152.

The previous prime is 20000002963. The next prime is 20000003017. The reversal of 20000003011 is 11030000002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000003011 - 217 = 19999871939 is a prime.

It is a super-2 number, since 2×200000030112 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000002985 and 20000003003.

It is not an unprimeable number, because it can be changed into a prime (20000003017) 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 3 ways as a sum of consecutive naturals, for example, 1418911 + ... + 1432936.

It is an arithmetic number, because the mean of its divisors is an integer number (5000715468).

Almost surely, 220000003011 is an apocalyptic number.

20000003011 is a deficient number, since it is larger than the sum of its proper divisors (2858861).

20000003011 is an equidigital number, since it uses as much as digits as its factorization.

20000003011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858860.

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 20000003011 its reverse (11030000002), we get a palindrome (31030003013).

The spelling of 20000003011 in words is "twenty billion, three thousand, eleven".

Divisors: 1 7013 2851847 20000003011