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2009200110001 = 7287028587143
BaseRepresentation
bin11101001111001101101…
…010001010100110110001
321010002002121110212021221
4131033031222022212301
5230404320212010001
64135002551145041
7265105565102140
oct35171552124661
97102077425257
102009200110001
1170510809a687
12285491075181
1311760b609a46
146d3626b5757
15373e5a361a1
hex1d3cda8a9b1

2009200110001 has 4 divisors (see below), whose sum is σ = 2296228697152. Its totient is φ = 1722171522852.

The previous prime is 2009200109953. The next prime is 2009200110007. The reversal of 2009200110001 is 1000110029002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2009200110001 - 215 = 2009200077233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009200110007) 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, 143514293565 + ... + 143514293578.

It is an arithmetic number, because the mean of its divisors is an integer number (574057174288).

Almost surely, 22009200110001 is an apocalyptic number.

It is an amenable number.

2009200110001 is a deficient number, since it is larger than the sum of its proper divisors (287028587151).

2009200110001 is an equidigital number, since it uses as much as digits as its factorization.

2009200110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287028587150.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2009200110001 its reverse (1000110029002), we get a palindrome (3009310139003).

The spelling of 2009200110001 in words is "two trillion, nine billion, two hundred million, one hundred ten thousand, one".

Divisors: 1 7 287028587143 2009200110001