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1111110000020 = 22571782471831
BaseRepresentation
bin10000001010110011010…
…100010001110110010100
310221012222011111020121222
4100022303110101312110
5121201023130000040
62210234211225512
7143163225112106
oct20126324216624
93835864436558
101111110000020
113992456a0499
1215b4105a8298
1380a14737c97
143bac6c0d576
151dd8101cbb5
hex102b3511d94

1111110000020 has 24 divisors (see below), whose sum is σ = 2366194819968. Its totient is φ = 438184224800.

The previous prime is 1111110000017. The next prime is 1111110000043. The reversal of 1111110000020 is 200000111111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1111109999962 and 1111110000007.

It is a congruent number.

It is an unprimeable number.

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, 391234496 + ... + 391237335.

It is an arithmetic number, because the mean of its divisors is an integer number (98591450832).

Almost surely, 21111110000020 is an apocalyptic number.

1111110000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111110000020 is an abundant number, since it is smaller than the sum of its proper divisors (1255084819948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111110000020 is a wasteful number, since it uses less digits than its factorization.

1111110000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782471911 (or 782471909 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1111110000020 its reverse (200000111111), we get a palindrome (1311110111131).

The spelling of 1111110000020 in words is "one trillion, one hundred eleven billion, one hundred ten million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 782471831 1564943662 3129887324 3912359155 7824718310 15649436620 55555500001 111111000002 222222000004 277777500005 555555000010 1111110000020