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1001110000021 = 6164331624037
BaseRepresentation
bin11101001000101101100…
…11100101000110010101
310112201001002002021020221
432210112303211012111
5112400233130000041
62043523101354341
7132220303411465
oct16442663450625
93481032067227
101001110000021
1135662855038a
121420318689b1
137353423b0a1
143664da29ba5
151b093e252d1
hexe916ce5195

1001110000021 has 4 divisors (see below), whose sum is σ = 1001112240492. Its totient is φ = 1001107759552.

The previous prime is 1001110000013. The next prime is 1001110000069. The reversal of 1001110000021 is 1200000111001.

1001110000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 958627019025 + 42482980996 = 979095^2 + 206114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001110000021 - 23 = 1001110000013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001109999959 and 1001110000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001110000621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195586 + ... + 1428451.

It is an arithmetic number, because the mean of its divisors is an integer number (250278060123).

Almost surely, 21001110000021 is an apocalyptic number.

It is an amenable number.

1001110000021 is a deficient number, since it is larger than the sum of its proper divisors (2240471).

1001110000021 is an equidigital number, since it uses as much as digits as its factorization.

1001110000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240470.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1001110000021 its reverse (1200000111001), we get a palindrome (2201110111022).

The spelling of 1001110000021 in words is "one trillion, one billion, one hundred ten million, twenty-one", and thus it is an aban number.

Divisors: 1 616433 1624037 1001110000021