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1021001300013 = 31925171363759
BaseRepresentation
bin11101101101110000110…
…10110111100000101101
310121121101100002000010110
432312320122313200231
5113212002313100023
62101012545130233
7133523235566652
oct16667032674055
93547340060113
101021001300013
11364005686492
12145a63329979
1375384247296
14375b96d7c29
151b85a36da93
hexedb86b782d

1021001300013 has 16 divisors (see below), whose sum is σ = 1438693401600. Its totient is φ = 642273822000.

The previous prime is 1021001300009. The next prime is 1021001300093. The reversal of 1021001300013 is 3100031001201.

It is not a de Polignac number, because 1021001300013 - 22 = 1021001300009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021001300093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35667573 + ... + 35696186.

It is an arithmetic number, because the mean of its divisors is an integer number (89918337600).

Almost surely, 21021001300013 is an apocalyptic number.

It is an amenable number.

1021001300013 is a deficient number, since it is larger than the sum of its proper divisors (417692101587).

1021001300013 is a wasteful number, since it uses less digits than its factorization.

1021001300013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71364032.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 1021001300013 its reverse (3100031001201), we get a palindrome (4121032301214).

The spelling of 1021001300013 in words is "one trillion, twenty-one billion, one million, three hundred thousand, thirteen".

Divisors: 1 3 19 57 251 753 4769 14307 71363759 214091277 1355911421 4067734263 17912303509 53736910527 340333766671 1021001300013