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210011100001 = 299689747421
BaseRepresentation
bin1100001110010110100…
…0110001001101100001
3202002002000221020221221
43003211220301031201
511420100320200001
6240251110415041
721113161616323
oct3034550611541
9662060836857
10210011100001
118107987786a
1234850361481
1316a5b3c4aa1
14a2438d3613
1556e22c61a1
hex30e5a31361

210011100001 has 8 divisors (see below), whose sum is σ = 217275575400. Its totient is φ = 202748138880.

The previous prime is 210011099981. The next prime is 210011100017. The reversal of 210011100001 is 100001110012.

It can be written as a sum of positive squares in 4 ways, for example, as 10894349376 + 199116750625 = 104376^2 + 446225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210011100001 - 27 = 210011099873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210011106001) 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 7 ways as a sum of consecutive naturals, for example, 92730 + ... + 654691.

It is an arithmetic number, because the mean of its divisors is an integer number (27159446925).

Almost surely, 2210011100001 is an apocalyptic number.

It is an amenable number.

210011100001 is a deficient number, since it is larger than the sum of its proper divisors (7264475399).

210011100001 is an equidigital number, since it uses as much as digits as its factorization.

210011100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757139.

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

Adding to 210011100001 its reverse (100001110012), we get a palindrome (310012210013).

The spelling of 210011100001 in words is "two hundred ten billion, eleven million, one hundred thousand, one".

Divisors: 1 29 9689 280981 747421 21675209 7241762069 210011100001