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2000400013 = 171398391009
BaseRepresentation
bin111011100111011…
…1010111010001101
312011102002211221101
41313032322322031
513044100300023
6530255303101
7100400056003
oct16716727215
95142084841
102000400013
119371a0157
12479b1aa91
1325b587461
1414d960a73
15ba9411ad
hex773bae8d

2000400013 has 16 divisors (see below), whose sum is σ = 2137968000. Its totient is φ = 1865106432.

The previous prime is 2000400011. The next prime is 2000400037. The reversal of 2000400013 is 3100040002.

It is a cyclic number.

It is not a de Polignac number, because 2000400013 - 21 = 2000400011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000400011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1982053 + ... + 1983061.

It is an arithmetic number, because the mean of its divisors is an integer number (133623000).

Almost surely, 22000400013 is an apocalyptic number.

It is an amenable number.

2000400013 is a deficient number, since it is larger than the sum of its proper divisors (137567987).

2000400013 is a wasteful number, since it uses less digits than its factorization.

2000400013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2000400013 is about 44725.8316076962. The cubic root of 2000400013 is about 1260.0050417620.

Adding to 2000400013 its reverse (3100040002), we get a palindrome (5100440015).

The spelling of 2000400013 in words is "two billion, four hundred thousand, thirteen".

Divisors: 1 17 139 839 1009 2363 14263 17153 116621 140251 846551 1982557 2384267 14391367 117670589 2000400013